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91 TBI T5 to 89 TPI T5 firebird

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Old Nov 29, 2011 | 10:49 AM
  #1  
zroc's Avatar
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From: way over there
Car: 87 IROC
Engine: LB9 for the moment
Transmission: T5
91 TBI T5 to 89 TPI T5 firebird

lil background

91 Body... originall a 305 TBI... when I got it the Engine was gone... I had an 89 305 TPI TA that the body was toast... both cars are T5 manual trans...

I removed the engine harness for the 91 TBI and routed the 89 TPI Harness in its place... and of course some oddities popped up...

I now have 2 sets of wiper connectors and am missing the Brake warning wire to the metering block.... no big deal...

I got to the point of trying to crank it up and this is what I have going on

no security light

no crank...

no injector pulse when using a remote starter button...

SES light comes steadily on but when the ALDL is jumpered no code 12...

I dont have $$$...

Im trying to find a chip for it that eliminates VATS (any help pointing me to a site would be greatly appreciated)

I can deal with the starter bypass relay...

the third connector under the dash has a couple different wires and some wires missing... I found one to be for the high setting on the heater fan... couple of them get nutty in the harness...

where is the Vats module and where can I find a decent wiring diagram online??? lol

I have yet to check for power to the ECM... but was wondering if the VATS system is the reason I cant at least a code 12 when the ALDL is jumpered???

any help is appreciated... if anyone thinks I should ask in other sections let me know please...

Thanx in advance
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Old Nov 29, 2011 | 11:07 AM
  #2  
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 91 TBI T5 to 89 TPI T5 firebird

there are three ways to bypass the vats, one with the appropriate resister. The next is with a vats bypass module. the third is to reprogram it out of the calibration.

http://www.painlesswiring.com/webcat...rchField=64023
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Old Nov 29, 2011 | 11:08 AM
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Tuned Performance's Avatar
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Joined: Dec 2004
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 91 TBI T5 to 89 TPI T5 firebird

http://www.austinthirdgen.org/index.php?pid=41
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Old Nov 29, 2011 | 11:11 AM
  #4  
zroc's Avatar
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Joined: Oct 2000
Posts: 223
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From: way over there
Car: 87 IROC
Engine: LB9 for the moment
Transmission: T5
Re: 91 TBI T5 to 89 TPI T5 firebird

looked at all that... thats why I was asking for a place to get the chip with vats removed... Im not trying to really repair the VATS... but I want to know when it is located on this 91 TBI car...
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