My car was diagnosed with a %26quot;Misfire%26quot; on the hand held code reader machine. I've changed spark plugs and wires, coil packs are good, new fuel filter, and i've used all kinds of Fuel system/injector cleaners and still the problem continues. Here's what it does.. When i accelerate the car surges back and forth and loses power. Very noticeable when going up a hill or incline. Any Ideas?
2000 Chevy Malibu 3.1L V6 170KCould this be a bad Fuel Injector?A bad fuel injector could cause this but bad compression could also do it.Could this be a bad Fuel Injector?if neither of the sensors were showing in the scan of the ECU then have the fuel pump tested for the right pressure.
if there is a dusty greenish powder on the NEG battery terminal you have a ground problem find it and clean it.
if the crankshaft position sensor is exposed check it, make sure that all the teeth on the gear(looks like a gear wheel) are there or not chiped.
test the FIs. make sure they have the right ohm reading.
if the problem started after a gas fill up, you have water inside the tank or bad gas from the station.
or very remotely, if you put down the tank E85 or any Egas thinking it was regular gas. which I doubt.
or if the car was sitting down for a while without turning it on once in a while, say like if it was in the shop for a few months or not used for a few months.
GL
