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No Tac Signal - LS2 swap/91 Z28

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Old 11-29-2009, 07:17 PM
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Default No Tac Signal - LS2 swap/91 Z28

Went to test fire a new lsx swap in a 91 z28 tonight. harness and pcm are using a factory setup for a 02 Fbody. vats is turned off in tune. All sensors appear normal during key on, o2's, ect, iat, tps ect. However when cranking(engine turns but shows 0rpm on scanner), thus not firing the injectors of spark plugs.

Reading is taken from hp tuners it self. The switched ing and constant power to the pcm has 12volts during key on and cranking. I followed all 6 wires for the crank and cam sensor and all are pinned into the pcm correctly for a 02 fbody. HPT of course has limited paramaters to scan cam/crank, however the crank hi/low low/hi stay on 0 while cranking as well as the crank sensor current cyl gives no reading during cranking. any input would be appreciated.
Old 11-29-2009, 09:08 PM
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Hey Josh, someone showed me this link. Most of it doesn't make sense to me, but I'm sure you know what it means.


http://www.hotrodlane.cc/New%20LS%20...0Not%20Run.htm



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