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747 Pin C9 to 730 ECM question

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Old Jan 6, 2016 | 02:27 PM
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From: Champlain, NY
747 Pin C9 to 730 ECM question

Installing a TPI SD in a 1994 K2500 5sp truck with 16196396 ECM which appears similar to the 747.

Can't determine where Pin C9 on the 396/747 transfers to the 730 ecm.

C9 is the Crank Signal on both the 396 and 747

attached diagram for the 747

Thanks
Attached Thumbnails 747 Pin C9 to 730 ECM question-747ecm7.jpg  
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Old Jan 6, 2016 | 03:29 PM
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: 747 Pin C9 to 730 ECM question

The '7730 with $8D doesn't use the crank signal. Can tape it off at the ECM end of the harness. Then someday when the starter is down can disconnect the other end.

I wouldn't pull it from the harness as down the road it could be re-purposed.

RBob.

Last edited by RBob; Jan 6, 2016 at 03:38 PM.
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Old Jan 6, 2016 | 03:56 PM
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From: Champlain, NY
Re: 747 Pin C9 to 730 ECM question

Originally Posted by RBob
The '7730 with $8D doesn't use the crank signal. Can tape it off at the ECM end of the harness. Then someday when the starter is down can disconnect the other end.

I wouldn't pull it from the harness as down the road it could be re-purposed.

RBob.
Thanks...C9 was not wired at the starter anyway. This is a K2500 cab that I bought and put on a 3500HD chassis.

Was hoping to locate an extra wire to run separate 5v references to A4 (MAP) and A5 (TPS)(730 ecm) but just joined them at A4 as per the wiring sticky above.

Thanks again
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