TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

TBI, VATS problem no power to injectors

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Old Jun 2, 2003 | 03:26 PM
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paul5.0's Avatar
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Joined: Jun 2003
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From: Fla
Car: trans am 1991
Engine: 305
Transmission: 700r4
TBI, VATS problem no power to injectors

Good day,
Im new to this board, and I wish that I could have found this website long ago. My name i Paul, nad I have a 1992 firebird TA formula with a 305 TBI. The car runs great!

The other day it just would not start. It has plenty of spark and fuel. but the injectors are not energizing.Im getting a fauld code of 53 when I jumper the 12 pin connector. I lloked up the code and it said V.A.T.S problem.

I assume that the security system or "passkey system" is messed up.
I have downloaded instructions on how to bypass the system with a resistor.

Could that be the problem???
Should I check for something else???
What should I keep in mind when bypassing?
If any one can help me, please email me back.
Thank you
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