Quote:
Originally Posted by Max777
There is NO confirmed cases of a car blowing it motor due to the fuel cut,
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Sorry, but I've done it.
I've posted it before, but short version...
1987 Turbo II
Estimated mileage around 70k miles
This happened back in around 1997 or so.
The car had relatively low miles given it's age back then.
Assume motor was in good condition due to low mileage.
STOCK exhaust but all cats punched out.
60mph on the freeway in 5th gear
Punch it once, engine hesitated
Wondered if it was overboost fuel-cut...
Do it again.
Engine stutters.
Clutch in...idle screwed.
Subsequent teardown shows rear rotor let go.
I have said this before, and I will say this again, the stock overboost fuel cut WILL kill the engine.
The stock ECU only kills fuel to the REAR rotor.
Banging off the overboost fuel-cut results in too violent of an effect.
I'm living proof that it is possible.
FCD + upgrade fuel pump is usually all you need to fix this problem.
-Ted