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Old 03-22-2005, 07:28 PM   #1
turbocolin
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Member#: 43539
Join Date: Sep 2003
Location: washingtonville ny
Vehicle:
95L 97L 03hedgehog
02 wag 180mph monster

Angry Cel codes p0122 and p0442

OK someone please help. p0122=tps/pedal position sensor A circuit low input and p0442=evap emission control system leak (small). I have searched so many threads with no resolution. Its a 2002 wrx...I have blitz nurspec catback and a helix uppipe. Does anyone know exactly what these are. Any input would be great. Thanks
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Old 03-22-2005, 07:43 PM   #2
munkis
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Member#: 1847
Join Date: Jul 2000
Chapter/Region: Tri-State
Location: brokenmotorsports.com
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Team Broken: V6 GF
rallyarmor.com

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Well the P0122, indicates a problem with the throttle position sensor or tps circuit.

The P0422, indicates there is a small leak somewhere in the evaporitive emmissions system.

First place to look for that is the gas cap, look at the seal and see if it is distorted or if the gas cap tether is stuck under the cap or has been in the passed.

Jay
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Old 03-22-2005, 07:47 PM   #3
Mulder
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Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
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15 WRX/05 GTO

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The TPS code indicates a problem with the throttle position sensor, either the sensor itself or the wiring. Make sure it's plugged in properly. If you have access to a scanner that can read live data look at the TPS values as the gas pedal is moved through its range. The indicated throttle % should go from 0 to 100 smoothly with no jumps or dead spots. If you don't have a scanner the TPS can be disconnected and checked with an ohmeter (only do this with the key off).
The evap code could be anything from the gas cap to a leaking hose or connection in the evaporative system either in the engine compartment or back under the right rear of the car where the charcoal canister and associated plumbing is located.

edit- posted at the same time as Jay.
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Old 03-22-2005, 08:00 PM   #4
munkis
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Chapter/Region: Tri-State
Location: brokenmotorsports.com
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Team Broken: V6 GF
rallyarmor.com

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I type like an srt-4....fAstAr! haaaaaaaar!
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