Question about 2002 Chevrolet Tracker

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The engine light is on. The machine say code 449.And where is that sensor. Thank you

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CODE PO449 EVAP VENT SOLENOID CONTROL CIRCUIT MALFUNCTION CONDITIONS. CHECK FUSE IF GOOD THE VENT SOLENOID FAILED.EVAP LOCATED ON A BRACKET NEAR THE FUEL TANK.

Posted on Sep 10, 2010

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Ash mechanic or the car dealer

Posted on Sep 10, 2010

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1 Answer

I got code PO 452, PO 443, PO 449 all EMS codes what do I need to replace and how hard to do your self?


The codes only tell the mechanic what to test, not what to replace.
You would need to get the shop manual for your vehicle to have the test instructions for each code.
Code 452 is a problem with the fuel tank pressure sensor circuit, 443 is evap canister purge and 449 is the vent valve circuit.
The evap system and those components would need to be checked out.

Oct 22, 2015 | Cars & Trucks

1 Answer

Service engine light stays changed gas cap done smoke test replaced oxygen sensor


Code 449 is for a defective vent valve solenoid. The engine computer can not open or close the valve or can not tell if the valve is operating.
The valve/solenoid would need to be tested and you will probably need a shop manual to get the testing procedure.

Mar 06, 2014 | Cadillac DeVille Cars & Trucks

1 Answer

1999 chevy siverado 4.8l diagnostic tester says i have po300,po121,po122,po440,p0449,po452 and gm p1639


Maybe.
Codes 121 and 122 are for the throttle position sensor circuit.
Code 400 is EGR and codes 449 and 452 are for the EVAP system.
Code 1639 is for a problem with the 5 volt reference circuit from the engine computer.
The throttle position sensor could be failing which could prevent the gas pedal from working. And the 5 volt reference problem could shut down the computer which would kill the engine. EGR is an emissions component and EVAP is the system that vents gas fumes from the gas tank.
Codes are only a guide for a mechanic to troubleshoot the circuits involved. They do not mean a component is faulty.

Jan 22, 2014 | Chevrolet Cars & Trucks

1 Answer

Service engine light code po 449


vent valve,check fuse,could be dirty.

Feb 23, 2013 | 1999 Chevrolet Silverado 1500

1 Answer

2002 chevy blazer codes 443 449 i replaced the maf sensor the vaf sensor on air horn the emmision valve on the engine the vent valve to even tried the gas cap clear codes drove the truck guess what codes...


p0443 is evaporative emission control system, purge control curcuit malfunction, p0449 is emission control system, vent control curcuit malfunction. p0449 is often a filler cap problem on fuel tank. try tightening cap

May 20, 2010 | 2002 Chevrolet Blazer

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Engine light on my 2005 gmc 1/2 ton pickup came on.


How is it Running? Rough, Smooth, Missing, ETC.?

Jan 11, 2009 | 2005 GMC Sierra

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Engine light on


That code is for cylnder bank 2 running lean, there is actually an open technical service bulletin for this issue on your car, for clogged fuel injectors. That could be the problem, as well as a vac. leak, a malfunctioning bank 2 sensor 1 oxygen sensor.

Dec 15, 2008 | 2006 Pontiac G6

1 Answer

Check engine light


it should be mounted on the charcoal canister near the fuel tank

Sep 13, 2008 | 2005 GMC Canyon

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