what is the year,make and model of your car?
1995 geo prizm 1.8 liter
the first thing to do here is to tune it up
it hasnt been done in a while ,i see
your problem may be the ect
engine coolant tempeture sensor
it may be telling the computer that the engine is always cold
already have tune-up planned and i bought book to check all the sensors
thus,causing it get too much fuelwhen in closed loop
give me just a second
checked codes, only get one i have had for about 4 years, egr system, no other codes
still yet,,remove and clean the egr valve with carb cleaner
the tune up may fix your problem
it may be the ect
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Don't know yet. Did tune up and checked coil, vacuum master, air temp inletand throttle position sensor (changed TPS)(tune up was rotor, cap, plugs& wires). Now I have a sure enough dead miss, rough running 3 cylinder withbad smell at tail pipe. But I dropped a spark plug on its end that goes inthe engine, so I will get a new one next week to see if the drop broke theinsulation on the spark plug. It was late, so I had to go get a rental totravel on business. If I still have a dead miss I will take to Toyotaservice to see if they can pick up something with their equipment.