why is my 1991 pontiac sunbird when at a slow accelartion between 30 and 40 miles an hour the cars motor fells like it want to jump out of the car

Asked by Feb 08, 2016 at 10:07 PM about the Pontiac Sunfire

Question type: Maintenance & Repair

car gave me a code 33,44,45 after replacing plugs and wires. replaced map.
cleaned maf and injectors.new airfilter. if cruscontroll is used the jurking is
worse

1 Answer

65,835

I looked up the codes, 33 is for the map sensor but you have that replaced. 44 & 45 are the oxygen sensors, probably should replace the 02 sensors. If there is still troubles, the TPS (Throttle Positioning Sensor) is related to the map sensor, but should be showing a code 21 & 22.

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