M52 swap cranks/fires then dies, no idle

[ColonelMustard]

M52 swap, OBDII, had the ecu "flashed"

The car cranks and fires up for a second, but that's it. Won't idle, but will fire every time I attemp to start.

What's the most likely culprit? Vaccumm leak? Bad MAF? Bad ICV?

[328ijunkie]

Unplug maf and try again.

[ColonelMustard]

A few culprits. Spider hose wasn't connected beneath the manifold. And the throttle cable couldn't adjust enough holding the throttle body open some. Got it running well enough to make the first drive on the swap back from the exhaust shop.

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[DMGSI E_TREINTA]

I'm having the same problem after taking a big bump. Car used to run perfect now turns and sparks but dies after if gas not pressed


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