ls1 swap will not fire!!!
03-07-2010, 10:35 AM
#1
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ls1 swap will not fire!!! I just got done swapping in a ls1 from a 99 TA into my 91 Z28. I can get the motor to turn over fine, but the injectors are not pulsing. I disabled the vats from the ls1 but not the 91 Z. I have spark and good fuel pressure. The cam sensor is new also. I am also using a full plug and play harness from Speartech. Any ideas would be greatly appreciated.
03-07-2010, 04:52 PM
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as mention make sure you get 12v when key on cranking and when on the run positon, seeems lots of people make that mistake, also make sure all of your ground wire are actually getting ground... as per the vats on the 91 you shouldnt have to disable it since you are still using the key I am not even sure it had one back then,, but if it did you shouldnt have a problem with it...double triple check the grounds good luck
03-07-2010, 09:19 PM
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Well, thanks for the replys guys. The motor had not ran in 10 years. It was wrecked in 99 with 4500 miles on it. The injectors were stuck. I just tapped them and the thing came alive!!!! Here is a link to my third start up vid.
http://www.youtube.com/watch?v=KlvSSjgDErI
http://www.youtube.com/watch?v=KlvSSjgDErI
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03-08-2010, 09:08 AM
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i had the same problem with my ls1 swap the left side of the motor wouldnt fire up only right side would. it was the wiring for sure. recheck it. thats what was wrong with mine.
03-08-2010, 05:19 PM
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I bought it off a guy that bought it for his 1970 camaro in 99 but sold the camaro and there the motor sat in his shop for ten years. He gave me proof of the mileage when I bought the motor.
