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ls1 harness on ls2 engine , engine not starting !!

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Old 01-10-2007, 07:05 AM
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Default ls1 harness on ls2 engine , engine not starting !!

everything is the right place what could be wrong??need help your help guys.

thanx in advance
Old 01-10-2007, 07:24 AM
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Reluctor wheel on the crank is for an LS1 right?????
Old 01-10-2007, 07:36 AM
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yes it is.
Old 01-10-2007, 07:37 AM
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What did you do for the cam sensor? did you buy a harness or extend your own? Any codes?
Old 01-10-2007, 10:34 AM
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Some of the extension harness for the cam position sensor had the wires reversed.
Old 01-10-2007, 11:58 AM
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yes, the wires from the PCM need to be reversed if you are not using a harness for the LS1 > LS2 swap (the harness should already has the pins swapped)

Just switch the outside wires, pin 1 and 3 and leave the middle alone. Of course if you havent already done that!
Old 01-12-2007, 10:45 AM
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Originally Posted by 02 BLK WS6
Reluctor wheel on the crank is for an LS1 right?????
i think this is my problem does anyoneknow how to fix it?
i swaped the cam sensor wiers 1 with 3 nothing happened:S
Old 01-12-2007, 01:44 PM
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What color is your cam sensor?

black = 24x
tan = 52x
Old 01-12-2007, 04:56 PM
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Just to play KISS here.

You have fuel and air, just no spark, correct? Do you have tuning software or a tach? Any spare parts to swap? I've had a crank sensor puke and cause this.
Old 01-13-2007, 10:46 PM
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Is the cam sprocket for an ls1 as well?
Old 01-14-2007, 09:30 AM
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thanx alot guys....finally we fire it up today....

the problem was form the harnesses it self....by the way it's 240sx with an LS2 and G5x3 MTI heads...T-56..with 4.10...and about 2500 lb (full wt.)

will post some pics for the conversion soon..

thanx again guys...



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