I have recently completed my LS swap. I am using a Holley Terminator X Max to run the engine and trans but kept the JKU PCM to run everything else. However, upon starting it the starter stays engaged after the engine is running due to the PCM not seeing an rpm signal from the engine. Is there any way to bypass the PCM for the start signal but continue to utilize the key?
Starter keeps running after a LS engine swap
- Thread starter Mz B Haven
- Start date
There probably is but just my opinion it would just be easier to use a push button for the starter, then it would help it to be theft proof.
I don't know if there is any help in here: https://wranglerjkforum.net/threads/jk-and-jl-factory-service-manuals.29798/
It's probably either the cam or crank sensor that sends the signal.
It's probably either the cam or crank sensor that sends the signal.
The Jeep (Mz B Haven) is a 2015. The Terminator ECU has a tach wire that I am not using because I used a Holley Pro Dash that plugs directly into the ECU harness. Can I connect the tach wire to the Jeep PCM for a signal to tell it to stop the starter? If so, where do I connect it?
Here is a couple of pictures of my swap. One is of the initial test fitting and the other is the completed project.
rockvegas555
Member
rockvegas555
Member
Hey Mz Behaven,
I'm doing the same swap with ls3 and have come across the same problem. Would greatly appreciate any info on the fix. Thanks in advance.
J