Fault Code Help - Toyota Nation Forum : Toyota Car and Truck Forums

urbnhilbily · 03-10-2008, 06:26 PM

Trying to help a friend I'm usually on the tacoma forum.
Friend took the car to autozone and recieved the following report.
"P1133 Manufacurer Contrl Fuel Air Metering and P1135 Manufacurer Contrl Fuel Air Metering and Also a P0301 Cyl 1 misfire detected" any help would be appreciated. I'm thinking maybe O2 Sensor, or dirty injector? Let me know what your guys know. Oh its a 99 LE 4cyl

***toyomoho*** · 03-10-2008, 08:32 PM

P1133 A/F sensor circuit response malfunction

P1135 A/F sensor heater circuit malfunction

P0301 Cylinder 1 misfire detected.

The first two codes point to a bad A/F sensor. The last code is a problem with this cylinder misfiring; most likely ignition system or fuel injector.