Ok guys (and April..) I need help with something >
09-24-2008, 12:55 PM
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Ok guys (and April..) I need help with something >
I recently had my bad cats replaced with new high flow units. After clearing the codes, I drove my car for awhile to get the monitors to run. After 150 miles or so, the CEL came back on. I no longer have the code for the catalysts, which is good. However, I still have three codes stored in the computer: PO441, P1128, and P1130. I know that two of those are related to my faulty intake manifold (which will be replaced soon,) but what is the other code for?
09-24-2008, 01:03 PM
#2
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Here you go....
<ul><li><a href="http://answers.yahoo.com/question/index?qid=20080120121746AAEJdRS">http://answers.yahoo.com/question/index?qid=20080120121746AAEJdRS</a</li></ul>
09-24-2008, 01:03 PM
#3
AudiWorld Super User
try searching (google) on the codes.
1128: Fuel trim long term - system too lean
P0422: Main catalyst Bank1 - below threshold
the other one is also a fuel trim, 35-10 something.
P0422: Main catalyst Bank1 - below threshold
the other one is also a fuel trim, 35-10 something.
09-24-2008, 01:07 PM
#4
AudiWorld Super User
sorry, should have been p0441 which is prob evap (purge?) valve.
yahoo search also works well from Edd W's post
09-24-2008, 05:08 PM
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Can someone give a course of action to follow? I only have 6 more days until my plates expire : (
If I don't pass my emissions test by the end of the month, I can't renew my plates. The fueling issue(s) will be solved by insalling a working intake (courtesy of a fellow forum member.) So all I need to do is solve this evap issue, and I should be able to pass. TIA.
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09-24-2008, 08:31 PM
#8
.....
https://forums.audiworld.com/a6/msgs/797070.phtml
https://forums.audiworld.com/a6/msgs/647204.phtml
https://forums.audiworld.com/a6/msgs/589814.phtml
https://forums.audiworld.com/a6/msgs/810122.phtml
(search aw for 'evap purge' in the C5 forum for 85 more hits)
https://forums.audiworld.com/a6/msgs/647204.phtml
https://forums.audiworld.com/a6/msgs/589814.phtml
https://forums.audiworld.com/a6/msgs/810122.phtml
(search aw for 'evap purge' in the C5 forum for 85 more hits)
09-24-2008, 09:33 PM
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From what you gave me, it seems like there are 4 common causes..
Vac lines, purge valve, gas cap, and charcoal cannister. Vac lines were replaced less than 2k ago, so I doubt it's related to them. That leaves three other sources. I will definitely buy a new gas cap, but what about the other two? How expensive are they? And where is the purge valve located? Bac's post mentioned it being toward the back of the engine bay on a 4.2, but that still doesn't narrow it down enough.