‘95 lt1 m6 formula longtubes and ram-air intake setup.
ive been trying to nail down an issue for the past week. When the cars cold it runs great but when it gets up to normal temps when you put the pedal to the floor it’ll bog down like it’s cutting out, it’s just falls ok it’s face at. Only at higher rpms like 3000 and up. Seems to be very rpm and throttle percentage dependent.
so far I’ve tried:
installed another used Opti
Swapped used coil and icm (re-thermal pasted everything)
swapped PCM
swapped TPS
did a speed density flash to rule out faulty maf.
Swapped to a new set of injectors
All this resulted in no change.
planning to check :
wires
plugs
Fuel pump & fuel filter (both were replaced within the last year).
It’s driving me crazy. Any input is appreciated, thanks.
-Johnny B
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