Originally posted by John Reece:
The Check Engine light began "flashing" yesterday so I figured it may be important this time. I am now getting the following codes:

P0340 - Cam Position Sensor A - Bank 1 Circuit Malfunction

P1131 - Manufacturer's Control - Fuel Air Metering

P0300 - Random/Multiple Cylinder Misfire Detected

Any suggestions on where to start will be appreciated.



I would replace the cam sensor as they're cheap I paid $20 cdn for a new one at NAPA.
The Crank sensor is what detects misfires so a P0300 might not be solved from a cam sensor.
Input from the ECT, MAF, and CKP sensors is required to enable the misfire monitor.

Your P1131 is caused from you misfire don't worry about it yet.
Input is required from the ECT, IAT, MAF, and CKP sensors to activate the HO2S Monitor.
The Fuel System Monitor and Misfire Monitor must also have completed successfully before the HO2S Monitor is enabled.

Other misfire items.
Plug wires, spark plugs, coil, crank sensor, fuel filter & pump.

1996 2.5LT V6 Contour ATX My Tour+help/info pics E0 rims, Gutted Pre-Cats,CTA Custom Exhaust & Intake, Diablo Chip.