Have chng sparkplu and wires including coilpak engine lite stays on and sometimes blinks
SOURCE: new plugs an wires,coilpak what else could
This is the only possible ideas I can thing of :
Fuel injectors, related wiring, sensors and computer issues
Running out of gas, or poor fuel quality
Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
Incorrect Fuel Pressure
EGR system concerns: leaking EGR valve or restricted ports
Base engine concerns: low compression, valve train problems and timing issues
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues
I know you did these two things:
Faulty spark plugs
Faulty coil or related wiring
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