Having problems with your 2002 Chevrolet Impala ?

2002 impala 3.8L 180,000kms. Having problems with car hesitating on acceleration(not all the time). Had maf sensor & idle air control sensor replaced recently. Fuel filter, air filter,new plugs & wires done about 5,000 kms ago. Catalytic convertor replaced at 165,000. Now after replacing those 2 sensors the car won't stay running on start up unless I accelerate a bit just after starting and then it will idle fine, otherwise it will just stall. Engine sputters out @4000rpm in park? not sure if i

Posted / edited by AnonymousUser on : 25-09-2017

Answers :

It is possibly the throttle position sensor(tps) malfunctioning. basically the computer or "brain" of the car thinks the throttle is in a different position than it really is and automatically makes adjustments to fuel, air ect.... based on these false readings from the sensor thus causing the engine to react a little different when you expect to have power.
Repair Help & Product Troubleshooting for 2002 Chevrolet Impala

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