91 Bird 3.1 problem rough idle then dies

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07-21-2010, 10:56 PM

kurfbird

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Car: 1992 Firebird v6 1992 formula v8

Engine: 3.1, 350 TPI

Transmission: both 700 r4

91 Bird 3.1 problem rough idle then dies

Car runs good.

When you come to a stop want to die has a miss, Studders on take off will die.

Okay had a bad motor so I replaced it with a good one with new heads. Head gasket head bolts and intake gasket. Trans has 6,000 miles on it.

Replaced the following parts during installation

Rebuild distributor with NEW Cap rotor wires, plugs, Igniton module and pick up coil. New coil

NEW
MAF sensor
Throttle position sensor
Idle air controller
Fuel injectors
Alternator
Belts
Water pump
Heater core
Hoses
Rebuilt 3.1 throttle body kit installed.
Collant Temp Sensor'
Starter

Inspected vaccum hoses etc. Anything that was suspect was replaced.

Check compression has 150-180 PSI
Checked fuel pressure has 40 PSI
Sprayed throttle body spray to see if there is any increase.

Things I will be checking on friday.

Fuel filter could be cloging and giving plenty of pressure but not enough flow.

Recheck compression.

Is there anything that I could be missing ??

Last edited by kurfbird; 07-22-2010 at 01:17 AM.