Ihave a 1994 chev cavalier that runs rough when it first ?

Question

starts and then smooths out after a minute. You can smell gasoline also during this period. It doesn't do it if it has been sitting for a prolonged period of time though.Have replaced coil pack,fuel pump, and had a tune up recently. 2.2 motor. Bad injector?

Answer 1

leaking fuel injector or bad temp sensor the temp sensor can be tested with a scan tool that reads live data look at the temp before you start the car

the fuel injector is a little harder hook up a fuel pressure gauge start car turn off car and let it sit if the pressure drops that is the problem



it also could be a weak coil or wire ir if the engine is ticking during this time a valve lifter

Answer 2

in case you dont desire to take it some the place for somebody to look at it and desire to maintain expenditures down i could examine your plugs one after the different to make advantageous their firing stable. examine/substitute your gas filter out placed some gas purifier and heet you pronounced it is been sitting i dont understand what the climate is like there yet there could be some water in it. in basic terms pass from there and notice what happens.

Answer 3

dirty fuel lines or fuel filter id try what the other guy said first fuel treatment and or a better fuel or have the fuel system flush

Answer 4

Dirty injectors.

Run a bottle or two of injector cleaner through the engine.

Answer 5

A bad coolant tempature sensor will cause this type of problem.

Answer 6

fuel pressure regulator.