C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

ALCL Question

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Old Dec 7, 2013 | 03:26 PM
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Default ALCL Question

Does anyone know which pin on the ALCL connector has the data for data logging? I replaced my 870 ECM with a 165 and I am now trying to data log. The engine runs OK but I can't establish a connection with DataMaster or TunerPro RT. If I know which pin the data is on I can possibly trace back to a bad connection from the swap.
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Old Dec 7, 2013 | 03:31 PM
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Pin E

http://members.shaw.ca/corvette86/En...agram%2086.pdf

Question: If you can't log now, how did you know what your injector pw and blm values were in your other threads?

Last edited by tequilaboy; Dec 7, 2013 at 04:07 PM.
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Old Dec 7, 2013 | 04:51 PM
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Originally Posted by tequilaboy
Pin E

http://members.shaw.ca/corvette86/En...agram%2086.pdf

Question: If you can't log now, how did you know what your injector pw and blm values were in your other threads?
I was able to log for a while. But now there's nothing. That's what leads me to believe it's a bad connection.
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Old Dec 7, 2013 | 05:49 PM
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Originally Posted by tequilaboy
Pin E

http://members.shaw.ca/corvette86/En...agram%2086.pdf

Question: If you can't log now, how did you know what your injector pw and blm values were in your other threads?
By the way, the electrical diagrams are very helpful. I just verified I have voltage on Pin E. So I suspect the serial terminal is not the problem.
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