P0442 jeep liberty

Lilah Butler, Car Insurance WriterJan 27, 2023 Lilah Butler, Car Insurance WriterJan 27, 2023 This review is not provided, commissioned or endorsed by any company. Opinions and ratings are our own. Liberty Mutual is a pretty good insurance ...

P0442 jeep liberty. Told a customer 3 days ago his XJ with the 4.0 I6 had 0 compression on cylinder 2 also,the plug electrode broke off and played hell with the cylinder wall and piston. My wife has a 2002 Jeep Liberty Limited w/ a 3.7L V6. I keep getting a misfire in cylinder #2. I replaced the spark plug and the coil already but i keep getting P0302 code.

Failed emissions test What Are The Causes of P0442? Because the …

20 posts · Joined 2009. #1 · Feb 17, 2009. I just bought a 2002 Jeep Liberty 2 days ago, warranty only covers engine and transmission. I got a "check engine soon" light and the diag sends P0455 code which is a EVAP Emissions Control Large System Leak. I checked the gas cap and it is tight fitting with no leaks or cracks and it is a factory cap.After running a diagnostics test on a 2002 Jeep Liberty, if you get the code P0442, that means you have an Evaporative Emission …The Statue of Liberty is important as a symbol of freedom and friendship. The statue has also come to serve as a representation of the United States itself. The Statue of Liberty was developed as a sign of the friendship that developed betw...P0837 - 2003 Jeep Liberty Sport. Got a CODE P0837 & P0442. Noticed my "4-Wheel Drive" light goes ON and OFF when I do not have it shifted into 4-Wheel High (I have to pull-up on the transfer case lever). When I have it in 4-Whee Highl, the light never goes ON. I ordered and have the "Service Manual - Liberty" from the DaimlerChrysler Corp.P0837 - 2003 Jeep Liberty Sport. Got a CODE P0837 & P0442. Noticed my "4-Wheel Drive" light goes ON and OFF when I do not have it shifted into 4-Wheel High (I have to pull-up on the transfer case lever). When I have it in 4-Whee Highl, the light never goes ON. I ordered and have the "Service Manual - Liberty" from the DaimlerChrysler …P0442 - Evaporative Emission Control System Leak Detected (small leak) This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system.

#P0432 CATALYTIC COMVERTER EFFICIENCYLiberty Interactive News: This is the News-site for the company Liberty Interactive on Markets Insider Indices Commodities Currencies StocksTrouble code P0442 means:Evaporative emission control system leak detected (Small leak)Aug 29, 2009 · I have a 2002 Jeep Liberty Limited Edition that has code P0442, which is Evap Leak Monitor Medium Leak Detected (a small leak has been detected in the evaporative system). This came on after turning o … In this video will be diagnosing an EVAP system leak on a Jeep Wrangler. p0442 small evap leak, P0445 indicates that there is improper purge flow, EVAP System – Small Leak. One of …Liberty Interactive News: This is the News-site for the company Liberty Interactive on Markets Insider Indices Commodities Currencies StocksSep 7, 2010 · 9/7/10 2:37 PM After running a diagnostics test on a 2002 Jeep Liberty, if you get the code P0442, that means you have an Evaporative Emission Control System (EVAP) leak detected, which is just a small leak, but a leak nonetheless. This video will show you how to smoke test the EVAP leak to find the problem spot inside the vehicle. Video Loading

The P0131 code is an OBD-II diagnostic trouble code that indicates low voltage in the Jeep Liberty's Oxygen (O2) sensor circuit for Bank 1, Sensor 1 (B1S1). This sensor plays a crucial role in maintaining optimal engine performance by detecting the air-fuel ratio in the exhaust, then sending this data to the Liberty's engine control.Fixed! p0455/p0442: I found a cracked hose coming into the canister. I also replaced the LDP Vent Valve (only $21). I also replaced the LDP Vent Valve (only $21). I figured the vacuum pump to check the valve cost $39 so since I have everything torn apart might as well replace it.The diagnostic trouble code is the code your OBD generates to tell you something is wrong. The DTC allows you to home in on the system that is not functioning properly. For example, if your vehicle’s OBD detects a leak in the evaporative emission system, you may see a P0442 code. On most vehicles nowadays, there are hundreds of possible DTCs ...What does check engine light code P0442 mean in a 2003 Jeep Liberty? Trouble code P0442 means:Evaporative emission control system leak detected (Small leak)

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P0132 is a common OBDII code that occurs in many vehicles, including the Jeep Liberty. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. The air fuel sensor stays in rich biased mode for too long. There are also some less likely problems that can cause P0132. We’ll go over those below.Jeep Liberty Create. 0. Log in. Subjects > Auto > American Cars. What are these codes P0455 and P0442 2002 jeep liberty? Wiki User. ∙ 2010-09-15 03:30:01. Study now. See answer (1)Unplug the vacuum supply hose at the purge solenoid and cap the hose. 3. Disconnect the electrical connector from the purge solenoid. 4. Connect a smoke machine to check for leaks. 4. The most likely leak area on this vehicle is the rubber hose ends at the evaporative canister. The ends crack.#1 · Dec 31, 2021 (Edited) Happy New Year all. I know there are a lot of posts about both P0455 & P0442 and I've read them all but had a question. I have a 2002 Jeep Liberty 4WD 3.7L that I really don't drive much. 145k miles.P0442 - Evaporative Emission Control System Leak Detected (small leak) This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system.Auto Technician. Vocational, Technical or Tra... 5,733 satisfied customers. Jeep liberty sport I have 2002 Jeep Liberty Sport. Today P0455. I have 2002 Jeep Liberty Sport. Today P0455 and p0442 codes occured.

The P0455 Jeep code occurs when the PCM detects a large EVAP leak. Symptoms include an illuminated CEL, subpar engine performance, stalling, and excessive exhaust smoke (among others). A malfunctioning gas cap or a defective emissions control system component can cause the fault code. However, the list does not end there. If your Jeep Wrangler has the P0442 OBD II code, you should first check the fuel cap. If it’s missing or broken, replace it. If the fuel cap seems ok, you must check the EVAP system for a leak. One of the most common issues that happens with the Jeep Wrangler is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII ...Aug 14, 2005 · 26 posts · Joined 2005. #1 · Aug 14, 2005. Hey fellas. I've got a 2001 Jeep Cherokee Limited 4.0 and is throwing this code out according to a code reader a friend of mine has. PO442 - Evaporatie Emission Control System Leak Detected - small leak. I was wondering if anyone has had any experience with this particular code or knows what the ... While replacing a bad fuel pump I believe I found the cause of a P0442 Error code. I was able to repair the fuel pump assembly using some JB Weld.=============================Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix P0442 ===========Engine Code P0442 Saving Repair P...What Does Jeep Code P0456 Mean? Jeep P0456 definition: Evaporative emission control system leak (small).; Issue Severity: LOW – Continued driving for a short period of time is okay Repair Urgency: Get this fixed within the next month to prevent drivability problems and excessive fuel consumption. Diagnosis: It is unlikely the driver …Jun 5, 2012 · Auto Technician. Vocational, Technical or Tra... 5,733 satisfied customers. Jeep liberty sport I have 2002 Jeep Liberty Sport. Today P0455. I have 2002 Jeep Liberty Sport. Today P0455 and p0442 codes occured. Usually this P0456 Jeep code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn’t properly tightened. Any of the following could also be the cause: A small leak in any of the EVAP hoses or fuel tank hoses A small leak in the purge valve or ...Feb 17, 2009 · 20 posts · Joined 2009. #1 · Feb 17, 2009. I just bought a 2002 Jeep Liberty 2 days ago, warranty only covers engine and transmission. I got a "check engine soon" light and the diag sends P0455 code which is a EVAP Emissions Control Large System Leak. I checked the gas cap and it is tight fitting with no leaks or cracks and it is a factory cap. P0443 is a very common OBD2 code. It’s generic, meaning it has the …May 30, 2020 · The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Loose fuel tank filler cap is the most common cause that triggers the P0442 code. User Submitted Video. Check if Jeep has issued a Factory Service Bulletin for the P0442 code (2013 - Up Models): → Check here.

May 30, 2020 · The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Loose fuel tank filler cap is the most common cause that triggers the P0442 code. User Submitted Video. Check if Jeep has issued a Factory Service Bulletin for the P0442 code (2013 - Up Models): → Check here.

Jeep Liberty - KJ (02 to 07) KJ General Discussion . Figured out my P0442 code. I think... Thread starter timmer; Start date Jul 15, 2007; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. ... (P0442) last week on my 02 liberty and read on the forums about the cracked hose issue. Sure enough, my ...Aug 14, 2005 · 26 posts · Joined 2005. #1 · Aug 14, 2005. Hey fellas. I've got a 2001 Jeep Cherokee Limited 4.0 and is throwing this code out according to a code reader a friend of mine has. PO442 - Evaporatie Emission Control System Leak Detected - small leak. I was wondering if anyone has had any experience with this particular code or knows what the ... The P0455 Jeep code occurs when the PCM detects a large EVAP leak. Symptoms include an illuminated CEL, subpar engine performance, stalling, and excessive exhaust smoke (among others). A malfunctioning gas cap or a defective emissions control system component can cause the fault code. However, the list does not end there.There are seven Jeep models as of 2015, including the Compass, Cherokee, Grand Cherokee and Patriot. The other models are the Wrangler, Wrangler Unlimited and the Renegade. Each Jeep vehicle comes in a variety of models, and each offers dif...The ECM has closed off all of the fuel tank vapor lines and monitors the vapor pressure and sees a pressure drop more than is allowed within the test parameters of the ECM. The cause of code P0440 can be a loose gas cap which is the most common reason for the code. Code P0440 is also set if any component in the fuel vapor system is leaking like ...Eric Marcum. 9 Answers. SOURCE: 2002 jeep liberty interior fuse diagram. 1-20amp-pwr outlet frt. 2-10amp-rear fog lights (export only) 3-15 amp-horn 4-10amp-hedlt low beam rt. 5-10amp-hedlt low beam lft 6-20amp-bodycontrolmodule/pwr dr locks 7-spare 8-spare 9-10amp- rt pk lt /rt tail lt/trailer tow lt/cluster.Jeep Liberty Forums. KJ Liberty Forum 03 Liberty codes P0158, P0455 and P0442 ... P0455 and P0442 I disconnected the battery and waited 5 minutes to clear the codes off the fault register. Drove the kids around town all day Saturday for about 20 miles worth of driving with multiple starts and stops at the store and friends homes etc. …

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SOURCE: 2002 jeep grand cherokee with 4.0 engine will die but restart p0340 is the cam shaft sensor, this will cause it to cut off while driving, hardtime starting, p0351 is the ignition coil A primary/secondary curcuit mal function. p1391 is ignition system misfire, this could be plugs, wires, or coils. first of all have the cam sensor changed and it may correct the rest of the codes. when ...https://www.fixya.com > ... > Liberty > 2002 Jeep Liberty Nov. 20, 2019 - what does the code LOWRSH mean when I start my jeep, where my mileage is shown, I see a message LOWRSH..I have - Jeep 2002 Liberty question. My jeep says LOWASH on the odometer before I put it in gear. Apr. 9, 2013 What does the term Lowash means on a 98 Sebring? - FixyaVocational, Technical or Tra... 25,681 satisfied customers. liberty: I have a 2003 Jeep Liberty with a 3.7 engine. It has. I have a 2003 Jeep Liberty with a 3.7 engine. It has the following codes in it: P0153 02 CKT slow response bank 2 sensor 1, P0455 and P0442 … read more.I'm not having much luck lately. Last weekend, my 2003 Liberty 3.7l started shuddering at idle and the check engine light came on. Went straight to Autozone for a scan, and the code was for a misfire (I don't remember exactly what code it was). Their computer recommended either spark plugs or coils. Having changed the plugs a few days earlier ...Labor: 1.0. The cost to diagnose the P0445 Jeep code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.2002 Jeep Liberty: the OBD code P0442..leak..V6..ve replaced - Answered by a verified Jeep MechanicP0442/P0455/P0456. I am just wondering how long such a rubber hose from center canister to LDP (leakage decection pump) I will need from NAPA. 2001, Jeep GC, 4.0L, 4X4. 2001, Jeep GC, 4.0L, 4X4. I replaced the cracked rubber hose (about 2") near the center canister attached to the test port with a green cap.Code P1281 Meaning. P1281 is a Diagnostic Trouble Code (DTC) that could mean an issue with your coolant level/mixture or an out-of-spec air-fuel ratio. Your engine coolant fails to reach normal operating temperatures while driving. For some vehicles, the DTC traces back to a problem with drivetrain sensors, fuel system components, or running ...03 Jeep Evap P0442 DTC EVAP P0442 P0455 P0456. youtube.com. 2001 Jeep Cherokee Sport Large EVAP Leak. youtube.com. 03 Jeep Evap P0442. DTC EVAP P0442 P0455 P0456. ... SOURCE: 03 Jeep Liberty - Evap system small leak. how about the filler neck. just had to replace mine and now its fine Posted on Jun 18, 2009.P0442-EVAP system medium leak P0303-Cylinder no. 3 misfire already cleaned the pcv valve and replaced the purge control solenoid to no avail for the p0442. been having that one for a while but the p0303 is new and the motor makes a funny noise around 2k rpms when accelerating which might...The evaporative emission control system (EVAP) prevents the escaping of gasoline vapors from the fuel system into the atmosphere. It redirects the vapors to a charcoal canister and then to an engine intake manifold. ECM checks the valves’ tightness and system pressure, and if the 0.2-0.4 inches leakage is detected, you can see the …OBD2 Code P0440 Jeep definition: This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a ... ….

Aug 18, 2014 · I did check the evap purge solenoid and found that after the engine starts and warms up i can hear the solenoid activate. it is repeatedly clicking. I wasnt sure if this is normal or if it should only be clicking every minute or so. I removed the lines and pulled a vacuum on it and it held. Any input on how to accurately test it would be awesome. Consejos para Diagnosticar el codigo de falla P0442 referente a fuga en la presion del tanque de gas en el sistema evap.In this video will be diagnosing an EVAP system leak on a Jeep Wrangler. p0442 small evap leak, P0445 indicates that there is improper purge flow, EVAP System – Small Leak. One of the most...You’ll need to carefully inspect your entire EVAP system: A common cause is a missing or loose gas cap. This easy-to-fix solution could be all you need to restore your EVAP system. However, minor tears, or rotten spots in your EVAP hose could also be the culprit. Your filter canister may also be cracked.In this video we show the process for replacing a coil pack on a 2004 Jeep Liberty showing code P0304. This is no gaurantee to fix your problem, but in this ...Photo about Izmir, Turkey - September 9, 2021: Izmir woman ryhthm group performing on the Republic square in izmir and on the day of Liberty Izmir. Image of music, percussion, ceremony - 230266426P0132 is a common OBDII code that occurs in many vehicles, including the Jeep Liberty. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. The air fuel sensor stays in rich biased mode for too long. There are also some less likely problems that can cause P0132. We’ll go over those below.#1 · Dec 31, 2021 (Edited) Happy New Year all. I know there are a lot of posts about both P0455 & P0442 and I've read them all but had a question. I have a 2002 Jeep Liberty 4WD 3.7L that I really don't drive much. 145k miles.Liberty: I have a Jeep Liberty. DTC codes P0122, P0442. What is the normal voltage range Idle Throttle and WOT? ... The P0442 is "EVAP System Small Leak Detected" - this is a fairly tough one to diagnose, as trying to chase down an EVAP small leak "by eye" is virtually impossible. Best bet here is to have the EVAP system "smoked". … P0442 jeep liberty, Jan 2, 2007 · KJ General Discussion. Replies. 0. Views. 776. Jul 24, 2022. Mr L. Hey Folks, Got a check engine light a couple weeks ago and took my car to autozone to get it checked out. Diagnostic machine read: DTC (Codes) P0455 EVAP Emission Control System Leak (Large) DTC Pending (Codes) P0442 EVAP Emission Control System Leak (Small) Any ideas what... , 2002 jeep liberty p0442 920 views . Ask a Question. Usually answered in minutes! Expand. Popular Questions. Firing order diagram 02 jeep liberty 3.7L ... , What does check engine light code P0442 mean in a 2003 Jeep Liberty? Trouble code P0442 means:Evaporative emission control system leak detected (Small leak), May 14, 2023 · The P0445 code indicates that the engine control module recognized a short circuit to the purge control valve. The Purge Control Valve is also called the EVAP valve, and it regulates the fuel vapors between the engine and the fuel tank. The purge control valve is often just a solenoid with two wires, 12v+ and ground. , https://www.fixya.com > ... > Liberty > 2002 Jeep Liberty Nov. 20, 2019 - what does the code LOWRSH mean when I start my jeep, where my mileage is shown, I see a message LOWRSH..I have - Jeep 2002 Liberty question. My jeep says LOWASH on the odometer before I put it in gear. Apr. 9, 2013 What does the term Lowash means on a 98 Sebring? - Fixya , Mar 3, 2017 · I'm not having much luck lately. Last weekend, my 2003 Liberty 3.7l started shuddering at idle and the check engine light came on. Went straight to Autozone for a scan, and the code was for a misfire (I don't remember exactly what code it was). Their computer recommended either spark plugs or coils. Having changed the plugs a few days earlier ... , The ECM has closed off all of the fuel tank vapor lines and monitors the vapor pressure and sees a pressure drop more than is allowed within the test parameters of the ECM. The cause of code P0440 can be a loose gas cap which is the most common reason for the code. Code P0440 is also set if any component in the fuel vapor system is leaking like ..., Hi I am having sort of same issue took it to Jeep dealership three time and w my FIXD device gives p0442 code can you help other than small leak detected in emissions. Mechanic's Assistant: How old are the hoses? And what driving conditions do you most often encounter?, , The most common cause of a P0445 code is a failed purge control valve or the wiring to it. It could either be a broken wire or, more likely, a shorted wire. In some cases, it can also be caused by a software problem in the engine control module. Faulty EVAP Purge control solenoid. Wirings to EVAP purge control solenoid., =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix P0455 =====Engine Code P0455 Saving Repair P..., Labor: 1.0. The cost to diagnose the P0445 Jeep code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto …, How to smoke and evap system to find the leak, P0442 is a universal OBD II diagnostic trouble code, applicable across vehicle manufacturers. It has a two-part definition. P0442: Evaporative Emission Control System → Leak Detected (Small) See more, May 31, 2010 · Fixed! p0455/p0442: I found a cracked hose coming into the canister. I also replaced the LDP Vent Valve (only $21). I also replaced the LDP Vent Valve (only $21). I figured the vacuum pump to check the valve cost $39 so since I have everything torn apart might as well replace it. , Jun 28, 2012 · Eric Marcum. 9 Answers. SOURCE: 2002 jeep liberty interior fuse diagram. 1-20amp-pwr outlet frt. 2-10amp-rear fog lights (export only) 3-15 amp-horn 4-10amp-hedlt low beam rt. 5-10amp-hedlt low beam lft 6-20amp-bodycontrolmodule/pwr dr locks 7-spare 8-spare 9-10amp- rt pk lt /rt tail lt/trailer tow lt/cluster. , P0442 is a universal OBD II diagnostic trouble code, applicable across vehicle manufacturers. It has a two-part definition. P0442: Evaporative Emission Control System → Leak Detected (Small) See more, JEEP LIBERTY CHEROKEE Check Engine Light and Codes P0455 and P0442 on a 02 Jeep Liberty I brought my jeep liberty 2002 to a PepBoys to find out what was causing the check engine light to come on and the results indicated that there is some sort of leakage issue. The guy who checked it out said it was a vacuum leak.The actual codes are …, Told a customer 3 days ago his XJ with the 4.0 I6 had 0 compression on cylinder 2 also,the plug electrode broke off and played hell with the cylinder wall and piston. My wife has a 2002 Jeep Liberty Limited w/ a 3.7L V6. I keep getting a misfire in cylinder #2. I replaced the spark plug and the coil already but i keep getting P0302 code., Jeep Liberty - KJ (02 to 07) KJ General Discussion . Figured out my P0442 code. I think... Thread starter timmer; Start date Jul 15, 2007; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. ... (P0442) last week on my 02 liberty and read on the forums about the cracked hose issue. Sure enough, my ..., Our comprehensive comparison of Liberty Home Guard vs. American Home Shield is designed to help you find the best home warranty coverage for you. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show ..., Feb 2, 2019 · P0132 is a common OBDII code that occurs in many vehicles, including the Jeep Liberty. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. The air fuel sensor stays in rich biased mode for too long. There are also some less likely problems that can cause P0132. We’ll go over those below. , Jeep Liberty Forums. KK Liberty Forum. 2008 gascap... 13452 Views 19 Replies 8 Participants Last post by VMF, Jun 10, 2011 Jump to Latest J ... I think P0442 is small EVAP leak, P0455 is large EVAP leak, etc. Here's a couple links I quickly found. If you search, you should be able to find info you need on the codes you pulled off. ..., Aug 31, 2022 · The P0455 it’s very common code because the code is set if the gas cap is loose or missing. Start by tightening the gas cap and clearing the code. In most cases, the code can be clear by disconnecting the car battery for about 30 minutes. ⭐ 2002 Jeep Grand Cherokee - 4.0 - P0455 - P0442 - Evap System Gross And Small Leak Detected. Watch on. , Permanent Code problem. I recently had a friends 2010 Camaro SS come over with no check engine light and no current or pending codes, However it has permanent codes for P0420 and P0430. These permanent codes are form being former current codes that have been cleared but not run and passed after being set. The car was tuned after the codes where ..., Dec 13, 2013 · p1684 code mean 2004 jeep liberty - Jeep Cars & Trucks question. Search Fixya. Browse Categories ... Dodge Caravan 2003 P1684 P0442 P0455 P0456 - OBD-Codes.com , Anonymous. 324 Answers. SOURCE: 2003 Jeep Liberty. p0455 is evap control system no purge or large leak. p0442 is evap control system leak detected (small leak) the cause for both could actually be a loose gas cap. Posted on Jan 28, 2010. Helpful 0., A. Abby_Guts Discussion starter. 18 posts · Joined 2007. #1 · Mar 23, 2008 (Edited) Hi, My Check Engine light came on in Dec 2006 and the code was P0442 - EVAP leak. Had it to the dealer (before I learned the key trick to read the codes) and the invoice says: PERFORMED LEAK DETECTION PUMP TEST - FAILED. PERFORMED SMOKE TEST, NO EXTERNAL LEAKS ..., The P0456 is a generic code stating that the Engine Control Module (ECM) detected a small leak from the evaporative system. This leak was detected during a self-test. For the code to come on, the test must fail two times …, After running a diagnostics test on a 2002 Jeep Liberty, if you get the code P0442, that means you have an Evaporative Emission …, In this video will be diagnosing an EVAP system leak on a Jeep Wrangler. p0442 small evap leak, P0445 indicates that there is improper purge flow, EVAP System – Small Leak. One of the most..., P0455 is a diagnostic trouble code (DTC) for "System Gross Leak Evaporative Emission". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 ., Ron Z. - Jeep Tech -. Vocational, Technical or Tra... 26,201 satisfied customers. 2003 Jeep Wrangler Sport: 4.0L 6 cyl..o2..Evap..leak. I have an 2003 Jeep Wrangler Sport, 4.0L 6 cyl with the California emissions package. The code coming up is PO161 - o2 senor heater circuit … read more.