1990 Pontiac Trans Am

Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.

you sent me alist of thing that might be wrong with my car and my garage fix everything and it still does it i will explain what it does. start car drive for 5 miles you go to punch it and feels like its flooding out

Best start by checking fuel pressure if its within specs -

i had technician check that and everything checked out. Anything that has to do with fuel has been changed and is brand new. it is a new engine had local motor company put it in i have a lot of money tied up in the car and it still dont. I had several technicians look at it together they have over 100 years experience in this feild and not one could fix it

Before I can continue I need the fuel pressure-both at idle and 2K rpm

45 idle 48 2k

Did they check the knock sensor could be retarding ignition timing

would a code show up if thats the case

Its suppose to work that way but at times they'll be a problem within the engine management system that the computer failed to lock-in and pop the CEL. Scan the computer again might give you something

well there was no codes that showed up i will try the knock sensor can i ask you where that is located thanks for everything i just want to get my car running and tired of paying mechcanic and still dont have a running car i hope i can find the problem because im going to take it back and show them i fixed it ha ha ha