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View Full Version : I need need some serious help


1bad88vert
01-18-2009, 05:25 PM
I have a 1988 lx vert. I have converted it to mass air. Its got pp intake ,69 351 heads slightly ported and polished , crane cam , 70 tb , 30 lb injectors . My problem is that the car will not run with a maf that is calibrated for 30's .The only way it will run desent is with the stock maf. I bought a pmass maf calibrated for 30's. The only way it will run with this on the car is if I turn the fuel pressure to 100 psi, and still doesn't run right .When the car is cold it is hard to keep running until it warms up. Once it warms up it runs fine. I don't know .It is like the car is running way to lean for some reason.:sad1:

Stable
01-18-2009, 05:44 PM
You need to have the Mass Air Recurved in the computer.....You are moving a lot more air than the computer thinks that you are, what computer....A9L?

1bad88vert
01-18-2009, 08:14 PM
yeah it's a A9L.

Stable
01-19-2009, 10:06 PM
see my other post here about MA....http://www.southeasternfoxbodies.com/forums/showthread.php?t=2455