3800 Wiring

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3800 Wiring by RedFrk

Started on	: 04-18-2003 06:29 PM
Replies	: 5
Last post by	: John Miller on 04-19-2003 10:27 PM

RedFrk
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From: Nazareth, PA
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Report this Post04-18-2003 06:29 PM

Can anyone tell me what the TCC brake switch wire does and where i need to hook it up to?

My engine still does not run for longer than 3 seconds and i had the computer reprogramed with the VATS deleted. I am going over all the wiring again to see if i missed something. Does anyone have any ideas on why my engine still stalls?

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92 S10
3800 S2 UNDER CONSTRUCTION!

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PBJ
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Report this Post04-18-2003 10:18 PM

The TCC brake switch wire will not cause your engine stall, it is for torque converter lock up for an automatic transmission. I you have a stick now you do not need it.

Start and stall after a few seconds sounds like you VATS, or maybe a fuel pump wiring concern. Does your fuel pump stay running, fuel pressure. Do the injectors stop firing?

Pete

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John Miller
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Report this Post04-18-2003 11:00 PM

I to had the same problem. My donor had the PASSKEY III. The only solution was to install the ignition switch from the donor car. I by passed the fuel pump and used the fiero relay. The computer shuts down the injector pulse. Hope this helps. John

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RedFrk
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Report this Post04-19-2003 12:55 AM

It is not the VATS becuase as i previously stated, i had the VATS removed by Dave Buckshaw (DHP). He removed the VATS, changed gear ration to 3.73 and did some performance tuning. I checked the fuel pressure a few months ago and it was 52 when the fuel pump primed and 42 when the engine started. The fuel injectors seem to be staying on. I am going to rent a check light from autozone tomorrow.

I have an automatic, so do i need to hook the TCC wire up to the brake light wire?

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92 S10
3800 S2 UNDER CONSTRUCTION!

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John Miller
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Report this Post04-19-2003 10:18 PM

I went thru the exact same thing with my conversion. After reading the service manual and talking with a couple of members I installed the ign. module and it fired and ran. I can't help you with the TCC wire as mine is stick. Good luck, John

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John Miller
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Report this Post04-19-2003 10:27 PM

By the by, did you use the fuel pump from the donor? These pumps have a higher rating due to the boost. The pressures you list are the same as I have. The pressure will rise during throttle opening. I recall looking for someone to eliminate my PASSKEY III and no one would touch it. First you need to find a tech that knows tech2 usually a dealer, and they won't touch it because of liability reasons. I called all over the country and no one could handle it. Good luck, John

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