Fuel Injection question....

[Pooma900]

My husband has a 2001 Impala (I know the car in general is a piece of shit) and after getting a 60K "full service" started experiencing several problems...

The car started hesitating when he accelerates...fuel injection system was "re-cleaned" for free by Tires Plus and new spark plug wires.

Four or five days later, the problem started again but coupled with very rough idling. It never shut off but feels like its going to...took it back to Tires Plus, the third spark plug wire was installed incorrectly and melted halfway through...causing a short...

he was also told that the "fuel injection coil" is bad and put in a used one...(why do they have "used" fuel injection coils laying around?)...car ran fine for three days, now the first problem is happening again...hesitation when accelerating...not a lot, just a little jerk that you can feel in the pedal.

any ideas, suggestions?

[2turboimports]

Is the check engine light on?

It sounds a bit strange that they could install a spark plug wire incorrectly. I've had my share of experience with Subaru coil packs, and you really can't short one out unless there is some sort of other major underlying issue.

I guess the first thing would be to see if the check engine light is one, and if so, get the codes pulled to see exactly what the ECU is saying.

[pind]

try throwing a fuel filter into it, and see what happens. this can cause a lot of the same types of symptoms you are describing.