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TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.

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Old 08-21-2009, 03:30 PM   #1
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just completed a TBI to TPI swap but having problems

I get fuel to prime, the engine cranks, but I have no spark. I also haven't tested to see if the injectors are firing or not... if anyone can help me out I would really appreciate it... thanx guys
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Old 08-21-2009, 08:20 PM   #2
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Re: just completed a TBI to TPI swap but having problems

you are still using the same distributor as before correct? If its a different distributor check in to the ignition control module or pickup coil. If it's the same 1 then you need to diagnose if its the injector driver or the wiring to the injectors.
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Old 08-21-2009, 08:35 PM   #3
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Re: just completed a TBI to TPI swap but having problems

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you are still using the same distributor as before correct? If its a different distributor check in to the ignition control module or pickup coil. If it's the same 1 then you need to diagnose if its the injector driver or the wiring to the injectors.
well I took everything from the donor car... and I used the distributor from the donor car since that engne is a 5.7 TPI and the one I took out from my car was a 5.0 TBI
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Old 08-21-2009, 09:18 PM   #4
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Re: just completed a TBI to TPI swap but having problems

well someone will correct me if i'm wrong, at least i hope ,but i beleive the distributors on all late model efi applications 80-90s is the same on v8s pretty much. In other words use your old distributor and try again.

or if you would rather, pull your ignition control module and take it to the nearest autozone they can test it for you and that would most likely solve the problem.

if you still have a problem after rent noid lights from autozone and see if the injectors are pulsing ok.
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Old 08-21-2009, 09:20 PM   #5
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Re: just completed a TBI to TPI swap but having problems

most likely the easiest thing to do is take the module off and have it test most likely therein lies your problem
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Old 08-21-2009, 09:38 PM   #6
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Re: just completed a TBI to TPI swap but having problems

ok I'm going to try those things thanx a lot hopefully this solves my problems
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Old 08-23-2009, 01:30 PM   #7
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Re: just completed a TBI to TPI swap but having problems

did that fix you up?
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Old 08-23-2009, 04:25 PM   #8
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Re: just completed a TBI to TPI swap but having problems

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did that fix you up?
havent tried it yet im going to mayber 2day or 2morrow i been kind of busy... i need to make myself avaiable for my car
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