Tbi to tpi swap gone wrong
07-09-2016, 11:20 PM
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Tbi to tpi swap gone wrong
Hi,Can some help me i did a tbi to tpi swap now i have no spark and no pulse to the injectors coil module and dizzy are good, i still have the tbi fuel pump can the low fuel pressure be the problem ??? The car cranks and fuel pump kicks in
07-10-2016, 01:09 AM
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Car: 87 Monte Carlo SS
Engine: 89 350TPI Transplant
Transmission: 2004r
Axle/Gears: 3.73
Re: Tbi to tpi swap gone wrong
You need a TPI fuel pump. TBI fuel pumps are low pressure, around 15 psi. TPI needs about 45 psi. Also, does the TPI setup your using have vats? If so, you may need to get a vats bypass module.
07-10-2016, 11:58 AM
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Car: 91 firebird Formula 350
Engine: 350 TPI
Transmission: N/A, working on a t5 swap
Axle/Gears: 3.73 posi
Re: Tbi to tpi swap gone wrong
If VATS is the problem, you can save some money and use resistors to bypass the security. Look up vats bypass on here. Just make sure you do it right, solder, heat shrink, all that good stuff.
07-10-2016, 01:38 PM
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Re: Tbi to tpi swap gone wrong
Would the low fuel pressure be the problem why the ingectors have no pulse also i have code 12,no refernce pulse to ecm
07-12-2016, 06:32 AM
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08-04-2016, 05:54 PM
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Re: Tbi to tpi swap gone wrong
POSTED ...didn't see it was solved
He has no spark. AND low fuel pressure got to fix both. I've been using Airtex E8248 in-line pump. 70GPH flow and up to 110psi pressure. Pretty quiet pump. No spark sounds like a control module or wiring from distributor to computer.
He has no spark. AND low fuel pressure got to fix both. I've been using Airtex E8248 in-line pump. 70GPH flow and up to 110psi pressure. Pretty quiet pump. No spark sounds like a control module or wiring from distributor to computer.
Last edited by Raysir; 08-04-2016 at 06:04 PM. Reason: it was solved didn't see this.
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