Infamous42

I have replaced the fuel filter both ignition coils tested all of my plug wires replaced plugs one cap and rotor. At first the misfire was not very noticable but now is significantly more present as time has went on before repairs listed over the course of say a month. Can be driven but have to let off when it starts misfiring around 1.7-2.2k you can rev past and feel it miss again around a higher rpm. I fortunately have a whole good parts car at my disposal. Not a rough idle in sight occasionally a rough start but usually starts just fine.

t2d2

iTrader: (8)

Try a different set of ignition coils. They'll produce symptoms along those lines even when they test okay.

Infamous42

So if anyone has these same problems ive found the solution its not ignitors its not caps and rotors or plugs its the ecu. A quick pulling the carpet back and removal of 3 10mm nuts pull the ecu out remove the top screws and then the 6 holding the top board and inspect. Lucky for me a wrecked a 92 sc400 that had been well maintained and have a spare rebuilt ecu on hand. As far as no cel it must be burned out on the cluster so i figured this out all on my lonesome. Gonna seafoam this ***** now and rebuild my suspension next weekend. Hope this helps someone.