IGNITOR PROBLEMS

1991 Toyota Corona

Tiny

millow

April, 14, 2009 AT 4:27 AM

Engine Mechanical problem
1991 Toyota Corona 4 cyl Front Wheel Drive Manual 90,000 miles

i have a toyota corona st171 with a 3sf 2litter engine carb type, I am having problems when it is running for a long time the engine starts to draging or like im lossing fuel, it also misfired at me at 100kph one time, I have adjusted the carbs and the timing and it runs ok when you start from cold, but when it heats up it starts to stall, was thingking it might be the ignitor or coil, and no matter how I adjust the air fuel mixture I still get a rich looking spark plugs they are moisted black. Ive done a compresion test and all cylinders are at 180 psi what do you think could be the problem

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