P0172 Code Flashed Up
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P0172 Code Flashed Up
Right, I replaced my NPS yesterday. It may have no bearing on the fault code but letting you know just in case. I have had the above fault code (P0172) when sat idling, cleared it with the PSI3 and it came back in the same circumstances. I understand it is running rich, or appearing to be.
Any tips anyone on how to diagnose positively? Can I clean my MAF? Its a Bug WRX, mapped with a few upgrades.
Any tips anyone on how to diagnose positively? Can I clean my MAF? Its a Bug WRX, mapped with a few upgrades.
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This will explain everything about the AFR
http://www.subaru-impreza.org/forum/...ned-afr-s.html
Jura
http://www.subaru-impreza.org/forum/...ned-afr-s.html
Jura
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Interesting, if I read that right I'm running a little rich but not drastically. What can cause the change, and can I spray clean the MAF with IPA or a similar fluid to clean it up?
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Not really an easy check as far as i know, just if you know anyone who can get there hands on a known good one and just swap to see if it makes any difference, Think its the one in the headers, My mate had an issue with a CEL turned out it was the sensor, Just a thought.
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I spoke to Duncan, who suggests a vacuum pipe into the inlet manifold may be split. Could anyone put up a quick pic of the hoses I need to be checking, Bug WRX of course!
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Hi there here all manuals for Impreza etc.
http://www.mediafire.com/?sharekey=5...21d66e282a0ee8
Or this can help too
http://www.turboboostleaktesters.com...WRX-STI/Detail
Jura
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