ss.slp.ls1

iTrader: (36)

I recently swapped in a LS1/T56 into my '94 TA. Engine, wire harness, and PCM came out of a 30k mile, good-running car. VATS has been deleted. I wired up everything I can think of, not my first LS1 swap, but the car won't fire...cranks strong, good fuel pressure, but no fire. I checked everything obvious I can think of, any other ideas?

Checked PCM
-checked Blue 1, Blue 40, Red 1, Red 40 for ground. Good
-checked Blue 20 & Blue 57 for bat +. Good
-checked Blue 19 for ign +. Good
-code reader communicates with PCM
-fuel pump primes

Checked sensors connectors
-checked both sets of coil packs for ign +. Good
-checked both sets of coil packs for ground. Good
-checked both banks of inj's for ign +. Good
-checked MAF and o2's for ign +. Good
-checked MAF and o2's for ground. Good
-cam sensor is plugged in
-crank sensor is plugged in

Checked grounds
-three grounds on the back of the driver side cylinder head are tight.
-battery ground to chassis is tight.
-battery ground to engine block is tight.
-engine block ground to chassis is tight.

I am hoping that someone with a Tech II can point out something that I am overlooking. Any help or other ideas is greatly appreciated.

180ls1

iTrader: (4)

have you tested a sparkplug to see if it is getting spark?

ss.slp.ls1

iTrader: (36)

Yes, no spark.

MSS91Z28

iTrader: (3)

have you checked your starter fluid?

Ryne @ CMS

iTrader: (10)

do you have cam and crank signal, also make sure your cam sensor wiring is correct alot of aftermarket harnesses have the signals switched

ss.slp.ls1

iTrader: (36)

That's mainly what I wanted to test with a Tech II, the cam and crank signal. I am using a factory harness and the cam and crank sensors are plugged in properly.

One thing I am going to check tonight (found searching on tech) is to see that I am getting 12v ign + to all appropriate areas while cranking. I originally tested everything with KOEO, not cranking. Hopefully that's it.

kmracer

iTrader: (1)

is there a CEL? after cranking, pull a plug. smell like fuel?

also, does the tach work?

ss.slp.ls1

iTrader: (36)

No cell, I can pull a plug tonight if I don't figure anything out. Tach is not showing any rpm right now, but I think the PCM has to be recalibrated and I think I have to add a resistor inline with the Tach signal to get it to work properly (LT1 to LS1 swap).

KILLER-LS1

iTrader: (18)

You might need to do a crank sensor relearn. its rare that you need to, but when I was at the dealer, this happened occassionally when cars came in with a no start.

ss.slp.ls1

iTrader: (36)

Figured it out. One of the wires that I thought was constant ign + didn't have power during cranking. Swapped wires and it fired right up. Thanks for the responses.

mannyman84

iTrader: (2)

Check continuity to the the coils. Power to the coils. Just make sure to get power to those suckers.