QuestionI have an intermitent problem with the engine sputtering and loosing power. Sometimes it runs great and other times hardly runs at all. I have taken it to 5 mechanics and spent over 2000 with no solution. Have replaced all electrical ignition componets except pick up coil. One mechanic said it was fuel pump but that he did not do fuel pumps and sent it out to another mechanic who tested it and said it was not the fuel pump, replaced the hall sensor and worked on the grounding wires. No improvement. Afraid to put any more into it just trying stuff. No error codes. I has good compression. Put on new fuel filter, plugs, wires, cap, rotor, coil, ignition module, hall sensor, 2 mufflers, and cat converter. Backfires a lot when missing, blew apart 2 mufflers.
AnswerWith so many hands already on the vehicle adjusting and replacing things it could be any number of items.
what are your compression readings on all cylinders ?.
Did this start all of a sudden or has it been getting progressively worse over time.
when is the first time you noticed it.
what is the fuel pump pressure ?.
Usually when a pick-up coil goes bad the car won't start at all.
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