LS1 swap wont start up
#1
TECH Addict
Thread Starter
iTrader: (70)
Join Date: Apr 2007
Location: Amarillo, Texas
Posts: 2,156
Likes: 0
Received 0 Likes
on
0 Posts
LS1 swap wont start up
Ok guys I have my camaro ready to kick over. When we try it all it does is rotate. It sounds like it isnt getting fuel or spark one but I may be way off. I checked the power wires to the injectors and to the coil packs and both are getting power. Fuel pump comes on when I turn the car over. Any ideas? Thanks in advance guys!!
Josh
Josh
#3
TECH Addict
Thread Starter
iTrader: (70)
Join Date: Apr 2007
Location: Amarillo, Texas
Posts: 2,156
Likes: 0
Received 0 Likes
on
0 Posts
Everything is getting power. We checked the plugs and they are arching just fine. Checked the fuel rails and we have fuel pressure no problem. I have no idea here
#4
If your sure the injectors are firing and you have spark it should at least try to start, not just turn over. At the end of the day if you have fuel, spark and air that's all you need to start. It may not want to run, but should at least sound like it is trying.
Trending Topics
#8
TECH Addict
Thread Starter
iTrader: (70)
Join Date: Apr 2007
Location: Amarillo, Texas
Posts: 2,156
Likes: 0
Received 0 Likes
on
0 Posts
Ok I just pulled a plug and it is dry as can be. I am not getting fuel past the injectors. It is getting to the injectors just fine. Could this be the crank sensor?
#19
TECH Addict
Thread Starter
iTrader: (70)
Join Date: Apr 2007
Location: Amarillo, Texas
Posts: 2,156
Likes: 0
Received 0 Likes
on
0 Posts
I installed a 2000 ls1 with engine harness into my 95. All the cab wiring is still there from the 95 and I spliced all the wires together to get it ready to fire up.
#20
10 Second Club
iTrader: (4)
Join Date: Oct 2006
Location: wisconsin
Posts: 855
Likes: 0
Received 0 Likes
on
0 Posts
the ls1 uses a bcm to control theft deterrent
the lt1 uses a theft deterrent module
did you connect pin a3 of the theft deterrent module to c2 pin 30 of the pcm(fuel enable circuit)
the lt1 uses a theft deterrent module
did you connect pin a3 of the theft deterrent module to c2 pin 30 of the pcm(fuel enable circuit)