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Fast XFI 1999 Tahoe help! I built a 406 sbc 550hp for another project and decided when my daily driver threw a rod id put in that. The 99 tahoe already has a 1 ton 14 bolt and 3k in the trans to more then handle the motor. Problem is I cant get the original computer to control the trans heres the motor specs Fast XFI 105mm holley throttle body edlebrock 105mm elbow super victor efi intake fully cnced aluminum profilers full roller 520 540 110 lobe sep fully forged bottom end 10.2 to 1 comp have a nx lightning kit for possibly a 100 shot |
Re: Fast XFI 1999 Tahoe help! right now the original computer is getting tps vss oil press. coolant temp. Im getting the typical evap egr codes but also a p0340 cam position circuit malfunction since there is no cam sensor to plug into Im also reading low tps voltage. The trans seems to be in limp mode not sure. It was driving a few days ago just needed to be tuned better I set the jet tune back to stock on the trans for engine test/driveability tune on the fast system. Then all of a sudden leaving a stop light it would not upshift seems to only have 1st and reverse may be second cant tell as it doesnt bog down. |
Re: Fast XFI 1999 Tahoe help! Already spent 13k on this thing and the wife will kill me if I go any further so trying to stay away from the tci trans controller or a th400 which would be the easy fix any help would be greatful |
Re: Fast XFI 1999 Tahoe help! you need VSS,Tach, and a TPS signal |
Re: Fast XFI 1999 Tahoe help!
Originally Posted by the_target
(Post 4455028)
you need VSS,Tach, and a TPS signal You going to run into any OBD-II emissions test issues in your state? -- Joe |
Re: Fast XFI 1999 Tahoe help! emissions what's that? j/k this thing won't be going through inspection anymore the stock computer is coming out so it would fail right away with the obd2 plug in. I ordered the new tci trans controller so hopefully the trans was just in limp mode and won't need to be rebuilt again |
Re: Fast XFI 1999 Tahoe help! Its a good unit, one of the nice things is that it will talk to your fast controller also. |
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