what am I missing hear

[rc10gt7090]

ok so the other day my car died and its giving me a missfire code.
so I changed the coil packs spark plugs and the Ecm and still the car wont Idle.
it will start only if i give it some gas. as soon as I let off the gas it will chug and missfire.

now the ECM came from my other grand prix so I know its good.
the new spark plug are AC delco iridium-tipped
the new coils are BWD along with the plug wires
ive checked the grounds on the motor and the battery and the one under the ECM mounting plate.
what am I missing? :th_scratchhead:

 

[dbextreme]

Unplug your MAF sensor and see if your car will start.

 

[loopy smurf]

What shape are your plug wires in? You mentioned changing the plugs and coils, but not the wires.

 

[BillBoost37]

You mean ICM? Cause there's no mounting plate for the ECM.

 

[rc10gt7090]

Ok so I found out the problem the O ring was bad/missing on my PCV
so I had many thig going on.
1 bad coil packs and the controler
a bad lim gasket and the missing O ring