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Evap codes on 2002 gmc jimmy useing to much gas

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The codes "say" its using to much gas? Or the program is "causing" it to use much gas? And how do you know its using to much gas?

Posted on Oct 16, 2013


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Posted on Jan 02, 2017

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SOURCE: 95 gmc jimmy engine codes

9141 does not exist I will assume it is DTC P0141 HO2S Heater Performance Bank 1 Sensor 2

The VCM has the capability to monitor this process by using the Heated Oxygen Sensor (HO2S Bank 1, Sensor 2). The HO2S (Bank 1, Sensor 2), located in the exhaust stream before the catalytic converter, produces an output signal which indicates the storage capacity of the catalyst; this in turn indicates the catalysts ability to convert the exhaust emissions effectively. If the catalyst is functioning properly, the HO2S signal will be far less active than the signal produced by the Heated Oxygen Sensor (Bank 1, Sensor 1).
When the HO2S temperature measures below 360°C (600°F), the sensor will not produce any voltage and will behave like an open circuit. This will result in an Open Loop operation.
The HO2S heater provides for a faster sensor warm-up which allows the sensor to become active in a shorter period of time and remain active during long extended idle. The DTC P0141 determines if the HO2S is functioning properly by checking the response time of the sensor. This DTC is a type B DTC.

Posted on Dec 06, 2008

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SOURCE: 1999 gmc jimmy 151k miles code 0452, emmissions help


Posted on May 31, 2009

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SOURCE: wath P1406 Code means on a GMC jimmy 1996,

It's an egr valve problem (exhaust gas return) egr position sensor.
Take off the egr valve and turn it over and see if there is carbon build up in the ports, if there is clean it out with a pipe cleaner and a little carbon cleaner, just spray a little into the ports and clean it out. If that doesn't cure the problem, then either the sensor needs replacing, and or the egr valve.

Posted on Apr 15, 2010

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1 Answer

1997 GMC Jimmy started spewing gas fumes into garage after fill up, keeps doing it until it gets down to 1/2 tank of gas?

check for a leak in the gas tank above the 1/2 level it could have a pin hole. it could also be a bad vent valve on the tank or in the EVAP system that needs to be checked out.

Oct 05, 2014 | 1997 GMC Jimmy

1 Answer

Gas leaking out of top of tank but only when filled 3/4 or more. also codes for evap leak

remove fuel tank look for the leak and if there is a leak there is a lost of pressure from evap.
I will try to repair the fuel leak and erase code and try it again
hope it helps

Apr 01, 2014 | 1996 GMC Jimmy

1 Answer

I have a 2001 GMC Jimmy 4WD. I cannot fill up my

Those hoses are located in the same area as the tank filler. There is a set of hoses that go from the gas cap connection to the tank. You have to lower the tank.

Aug 02, 2013 | 2001 GMC Jimmy

1 Answer

Trouble code p0440

The basic problem the code is used for is a leak in the EVAP system.
The computer vents the gas tank to the vapor canister several times while the engine is running.
You would need the test procedures for the code to test the components involved. It could be a faulty gas cap or several other parts.

Mar 17, 2013 | 2000 GMC Jimmy

1 Answer

Where is the evap purge solenoid sensor on a 1997 jimmy

where is the evap sensor on a 1997 gmc jimmy 4x4 6 cylinder

Jul 25, 2012 | 1997 GMC Jimmy

1 Answer

Please tell me what these codes p0440 and p1351 for a 2000 gmc jimmy are

p0440 is a evap system code and p1351 isthe same code im getting ignition coil control circuit high voltage. im still trying to figure out why mine wont start. so far looks like a fuel pressure issue

Sep 22, 2011 | 2000 GMC Jimmy

1 Answer

Got a code of p0446 on my 95 gmc jimmy 4wd. what is it and how do i fix it? When do i know it is solved? Or what should i look for?

P0446 - Restricted/Blocked EVAP Vent Path.

The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

Possible Causes:
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.

Possible Solutions:
- Clean the EVAP canister vent hose assembly.
- Replace the EVAP canister vent valve & solenoid.

The DTC will clear once the issue has been resolved or you can clear the code with a GM approved scanner. Do not clear the code before the issue is corrected otherwise the light will keep coming on.

Jan 23, 2011 | 1995 GMC Jimmy

1 Answer

Why would gas be comung out of the evap canister under the back end of my gmc jimmy?????

one way this can happen is when you get gas at the gas station and when fueling up, the gas nozzle clicks off and then you keep adding more until your really full it can end up going up into your evap canister

Aug 08, 2009 | 1998 GMC Jimmy

1 Answer

Check ingine code says there is a air leak somewhere

evap leak can be due to a gas cap not tightened fully. Did this code come up after fueling? If yes, have auto parts store erase code for you at no charge.

Apr 22, 2009 | GMC Jimmy Cars & Trucks

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