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What this code main p0446 - 2002 Chevrolet Tahoe

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P0436....Catalyst Temperature Sensor Range/Performance (Bank 2)

not sure of this code meaning but i think it may mean one of your O2 sensors needs changing ,check the voltages with a automotive meter first though to check that this is the fault

Posted on Mar 18, 2011

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Posted on Jan 02, 2017

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How to fix code p0446 on a pontiac g6


P0446 Evaporative Emission Control System Vent Control Circuit Malfunction. The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP).

https://www.obd-codes.com/p0446

Jan 25, 2017 | Pontiac Cars & Trucks

1 Answer

Got code p0446 on my grand am what is it


Evaporative Emission Control System Vent Control Circuit Malfunction

the following links can assist you with problem
https://www.obd-codes.com/p0446 P0446 OBD II Trouble Code p0446 Yahoo Video Search Results

Sep 29, 2016 | Cars & Trucks

1 Answer

My 06 cobalt has these codes can anyone tell me what they mean? Are they an expensive fix? p0446,p0455, p0172


code p0446 refers to evaporative emission (EVAP) system-vent control-circuit malfunction===causes --wiring--EVAP canister purge valve--ECM
code p0455 refers to EVAP system-large leak detected===causes --hose connections--intake leak--EVAP canister---EVap canister purge valve
code p0172 refers to system too rich, bank 1===causes intake blocked---EVAP canister purge valve--fuel pressure ---EGR system---injector/s ---ECM
because the EVAP purge valve appears in all codes I would be inclined to change that unit first the run the fault codes again

Jul 23, 2015 | 2006 Chevrolet Chevrolet Cobalt LT

2 Answers

I got a code p0446 and u1153 what is wrong


P0446Evaporative Emission (EVAP) Vent System Performance=ECM, PCM

U1153 Loss of Communications with HVAC

Mar 09, 2015 | Cars & Trucks

1 Answer

What does the code P0446 onn a 2002 2.4l 4 cylinder Dodge Stratus SXT mean?


Generally in google search type obd2 then po446 or whatever and an obd2 site will come up w specifics for that code. Vehicle specific generally doesnt matter. http://www.obd-codes.com/p0446 typing odb2 before the code is important to find the right site. Refer to link for specifics or search using that format I suggested.

Sep 08, 2014 | 2002 Dodge Stratus

2 Answers

P0440, P0441, P0446


where is Evap Emission Control System Purge Flow fault

Jul 02, 2009 | 2000 Toyota Celica

1 Answer

Code p0446 1997 nissan maxima


how did you fix your p0446 code?

Apr 21, 2009 | 1997 Nissan Maxima

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