trouble starting in '86 5kcstq (HELP! More problems!!!)

[Bernard Littau]

Luke writes:
I really don't know what to do now.  I installed a new check valve in the
fuel pump.  I went to start and now i have to floor the gas just to keep the
engine alive, it won't idle.  If i let off on the gas, it will die and i
will have to wait 10 min or so to have another successful attempt.  I don't
know if there is just a lot of air in the system or something, but this is
really killing me!!  I have tried keeping it going for as long as i can (5
min or so) but it still dies when i let off the gas.  I would appreciate any
suggestions, especially from those who mailed me previously regarding this,
TIA!

Sounds like a massive leak in the air induction system, and the resulting
rich mixture flooding the engine.  Check your hoses between the turbo and
the intercooler, and the intercooler and the throttle-body.  Don't just look
at them, pull them off and examine them by flexing them and looking for
splits.

Did you align the distributor, check the intake temperature sensor and
refresh the ECU ground on the engine?

Best,

Bernard Littau
Woodinville, WA
'88 5ktq