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Code 46 After Changing Alternator

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Old 11-15-2015, 10:25 AM
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Code 46 After Changing Alternator

I have a 1992 TPI set up in my 76 Chevy Pickup.
I had an issue with my alternator a few days back. It was back feeding and my A/C system was hot with key off. I changed the alternator and now I get cranks with no start/cranks with a few seconds starts and dies syndrome.

Code 46 is coming up after resetting ECM with battery disconnect. I had a code 51 with a stuck on CEL earlier also.

I found my in line VATS resister and it OHMs out fine.

Anyone have any ideas?
Did my alternator problem fry my ECM?

Thanks,
Pugsy
Old 11-15-2015, 04:58 PM
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Re: Code 46 After Changing Alternator

Bump.

Anyone have an alternator issue toast an ECM before?
Old 12-06-2015, 09:54 AM
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Re: Code 46 After Changing Alternator

I got the VATS bypass from Baker Electronics and she started right up. It died a short time later so I swapped from the blue wire to the green wire (30 HZ).

I joined the wire to the VATS F10 wire but did not cut it. Not sure if this is correct or not.

I think it's time to order up a chip/ECM? with VATS disabled.
If this aftermarket module fails, I'll be stranded somewhere.
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