Help, need advice got back from dyno

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Mar 22, 2005 | 01:48 PM

#11

Stroker 1500

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From: fresno, ca

Quote:

Originally Posted by TurboBerserker

John,

A couple of things come to mind. Have your told the PCM you have more cubes? Have you played with the IFR, or MAF?

I would really suggest setting up a new VE table via the SD method, with an accurate IFR and an accurate MAF, now that you actually have better VE.

Also, how are your o2 sensors? Old?

Yes the first tune was actually a mail order tune for it and then the seacond one was one that i had messed with to see if it made a difference. Both tunes had been modified for the bigger engine in the way that the PCM was programmed for the bigger engine and the VE table was modified... The problem im having is that so far no change i make will change the a/f. Its stayin at 14.5 no matter what but i would think if it was injectors it would start rich and then go lean which it doesn't do. The o2 sensors are pretty old the have about 80k on them