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Old 09-10-2003, 01:23 AM   #1
hitman912
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Join Date: Jun 2003
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Location: Watsonville and Sacramento
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Default check engine light

i dont know where else to post this........but my check engine light came on so i set up an appointment for friday to get my 02 wrx checked out. i have after market exhaust and intake so will they deny my warranty??? please dont yell at me if this shouldnt be here. thanks.

dave
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Old 09-10-2003, 01:25 AM   #2
Ken
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They can deny you warranty if the CEL is related to whatever part of the car you have mods on. Exhaust should generally be ok. but say you have a blown MAF. it could be cause of the intake.
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Old 09-10-2003, 07:39 AM   #3
Mulder
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There are many potential causes for the CEL to come on, but before heading to the dealer check the obvious first. Did you get gas recently? Look at your gas cap and be sure it is tightened fully past where it clicks, if it isn't a CEL will result (there is a warning right on the cap).
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Old 09-10-2003, 09:51 AM   #4
Zola
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Take it to an Autozone and get the code pulled for free, so you can tell them exactly what it is. You may be able to avoid a hefty "diagnosis" charge that some (most?) dealers use to cover the extraordinary time and effort it takes to plug their monitor into your OBDII port.
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Old 09-10-2003, 06:27 PM   #5
Mulder
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Autozone in CA is no longer pulling codes for free, some kind of legal issue.
If you still want to get it checked before you go to the dealer post in your local forum to see if someone local to you has a scanner and can read the code.
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Old 09-10-2003, 07:57 PM   #6
Zola
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Quote:
Originally posted by mulder
Autozone in CA is no longer pulling codes for free, some kind of legal issue.
Wow...that's really a bummer. I would be so pissed!
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Old 09-10-2003, 09:38 PM   #7
Robin2
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Probably a misfire..... such as P0304.... I invested in a OBD2 code reader and it's always busy at the local subaru meets....

On the WRX's, I pull lots of misfires....

Robin
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Old 09-11-2003, 12:48 AM   #8
hitman912
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thanks for the info guys. i appreciate it very much.
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Old 09-12-2003, 08:05 PM   #9
dj_noose
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How long have you had the exhaust and are you catless? A 2k or a 2.2k ohm resistor (can't remember which one exactly) can be inserted into the O2 sensor wiring harness... The one coming off the downpipe. Just bend it into a U shape. Try both.

As far as your MAF being blown... your car will not run if this was the problem.
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Old 09-12-2003, 08:10 PM   #10
Mulder
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Quote:
Originally posted by dj_noose
A 2k or a 2.2k ohm resistor (can't remember which one exactly) can be inserted into the O2 sensor wiring harness... The one coming off the downpipe. Just bend it into a U shape. Try both.
The 2.2K ohm resistor is used to replace the EGT sensor in the uppipe. It has nothing to do with a CEL fix for the rear 02/catless exhaust.
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