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Hope someone can help....

Occasionally getting flashing CEL and reduced power on full throttle. I have a basic code reader and its telling me P1300 misfire. Freeze frame reports P1300, OL-Drive 96.5%

I believe the car is possibly over fuelling.

I took it to get it plugged into Tech2 , but without the light on the mechanic (who does really know his stuff) told me there would probably be no codes. I did check it again with my own code reader and it seems the codes have cleared.

I have already replaced the following - DI Cassette (genuine SAAB), Plugs (NGK PFR6H-10), Fuel Pressure Sensor, O2 sensor (front), Brake Servo Vacuum line, Crankcase breather hose, Rocker cover gasket, Oil pressure switch.

The car under normal load is driving well, however the idle could be described as a touch lumpy.

Next stage MAF and CPS?

Many thanks.

Alex.
 

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I'd be looking for vacuum leaks.

P1300 (from memory) is a random misfire. That would explain your flashing CEL (flashing means "catalyst damaging misfire" and it would also explain your lumpy idle.

Frank.
 
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