what is my car's problem??? (vid included)

[boostjunkie02]

Okay, I cannot find out what my car's problem is. I do not have a logger. It just keeps sputtering and it will not go over 2k at wide open throttle. I have changed spark plugs, spark plug wires, fuel filter and fuel pump, and the mas. So here is a video of what it is doing... please somebody help me. Thanks


http://www.youtube.com/watch?v=dFVRFXQw8jY

 

[98gst14b]

do you have a afc? if so try adjusting that a little, also try a boost leak test.

 

[92awddsm]

Try a boost leak test. Sounds like you either have a loose or ripped ic coupler.

 

[2gAWDTalon]

anyone notice his boost gauge reading in that vid? It is reading boost... What would that mean?

 

[92awddsm]

anyone notice his boost gauge reading in that vid? It is reading boost... What would that mean?

It means that a large amount of air was moving through the mas. The stock boost gauge does nothing more than guess what boost levels are based on the amount of air flowing through the mas. It has nothong to do with actual boost pressure going into the engine.

 

[95talon_in_ma]

Did it happen all of a sudden? Or after you changed something? Like wires etc...Firing order maybe?

Oil pressure looked pretty low too...

 

[ddavisaf]

Oil pressure problem - Reconnect your oil sending unit. It's underneath of your crank pully and towards the front of the car.
Idle problem - You need to run a boost leak. Make sure you're running NGK BPR 6 ES's gapped at .028" for spark plugs. Let us know how long you hold 20 psi during your boost leak test before the pressure drops.

 

[grnchevyz]

You're lacking air or fuel.

Air - boost Leak test it as ddavisaf said.

Fuel - Noticed you changed the fuel pump? OEM? 190? 255? Make sure it's wired properly and that its not overrunning the injectors if you did a 255 swap.