have a 99 corolla ce with code p0171, wont pass smog, changed o2 sensor , plugs wires, and valve cover gasketng but still code P 0171 what could be the problem, read it could be fuel injectors.

Asked by Feb 09, 2015 at 10:57 PM about the 1999 Toyota Corolla CE

Question type: Maintenance & Repair

2 Answers

148,585

http://engine-codes.com/p0171_toyota.html /go there for a list of causes and solutions. You are looking for a vacuum leak or MAF is bad among other things fuel injector(s) included

1 out of 1 people think this is helpful.

sorry did not reply sooner was not surehow, anyhoot thanks for advice my, i have checked all on the car except for inejctors cannot find a place to check them without taking them off, so have appt with toyota on friday, someone thought it could be my cat convertor, so i was so frustrated just made appt to pay 135 to findout whats wrong

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