Hi guys my 2001 Subaru wrx impreza 2.0litre turbo bank1 is running rich. on 2001 Subaru Impreza

P0172 keeps coming back on once erased. When erased car power an sound is much better. Have no idea what it may be? Any advice would be much appreciated. Thank you drbumper.com

by in Tacoma, WA on March 26, 2013
1 answer 1 comment
ANSWER by on March 27, 2013
po172 could be caused by leaky injector or any fuel related part that is causing to much fuel to enter cyl's. seek diag to why and have live data scan to ck inj pulse width
COMMENT by on March 27, 2013
Thanks Greg much appreciated from over the pond lol

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