VATS resistance question

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Oct 19, 2011 | 11:54 PM

palric

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From: British Columbia

Car: 90 IROC 5.7 hardtop

Engine: L98

Transmission: T5 swap

Axle/Gears: Yup -- they still work

VATS resistance question

hello

I have a 90 5.7 with VATS. I am experiencing some issues with engine cut out. It feels like no fuel, is occasional/random. I have replaced so many other parts I figure I will look into VATS (the symptoms are there).

first question is

There are 15 different codes that GM uses in their V.A.T. systems. They are as follows, (1) 402, (2) 523, (3) 681, (4) 887, (5) 1130, (6) 1470, (7)1870, (8) 2370, (9) 3010, (10) 3740, (11) 4750, (12) 6040, (13) 7500, (14) 9530, (15) 11800

If my key is a code 7 and my actual resistance is 1851 instead of 1870 would this cause a failure or intermittent failure? Is there an allowable range for resistance built into the VATS program? Or does VATS expect exactly that resistance?

thx

Oct 20, 2011 | 06:48 AM

vetteoz

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From: Not in Kansas anymore

Car: 82 Z28

Engine: 383 SP EFI/ 4150 TB

Transmission: T400

Axle/Gears: QP 9" 3.73

Re: VATS resistance question

Quote:

Originally Posted by palric

If my key is a code 7 and my actual resistance is 1851 instead of 1870 would this cause a failure or intermittent failure?

No
Is well within allowed range
See
https://www.thirdgen.org/vats_passkey_system

Quote:

Originally Posted by palric

I am experiencing some issues with engine cut out. It feels like no fuel, is occasional /random.

When cranking car over?
Do you have a code showing for VATS failure?

Oct 20, 2011 | 10:53 AM

Base91

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From: Georgetown TX

Car: Base 91 'bird

Engine: 3.1 v6

Transmission: 4L60

Axle/Gears: 9-bolt 3.27 & PBR

Re: VATS resistance question

Does the ecu only check vats at start up or at any time when the engine is running? What if the key was loose and could be removed? Don't laugh. I've had that on an older car.