Terminator X LS2 cam sensor blue
05-20-2022, 07:36 AM
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Terminator X LS2 cam sensor blue Hey everyone,
Running into an issue with my car.
LY6 BTR stg 3 NA cam swapped foxbody with the terminator x powering it.
Car has ran great, started up no problem multiple times, drive it around the block a few times etc etc.
I changed my fuel line setup because my post filter was in the engine bay by the headers, so I moved it back behind the rear axel and changed my fuel supply line from a Y that branched into each fitting to a T fitting from passenger side to driver side.
Moved my fuel regulator from side wall to fire wall.
Started the car with 1 muffler off, started right up ran fine etc.
Took both mufflers off, car wouldn't start.
Put both mufflers on, car wouldn't start.
Pulled the spark plugs, fouled, cleaned and reinstalled. Car started right up.
I've had to clean and reinstall the plugs about 3 times now.
This time, I started up the car, didn't even have to crank it for a second and it started up great.
Pulled the car out of the garage to do some work to it.
Finished the work and tried to start the car, nothing.
Pulled the plugs, not that bad but still cleaned and reinstalled.
No fire.
Checked the Terminator and I've got a red light on 6 which is cam sensor.
So, when I was originally wiring up the car, the BTR cam comes with a new timing cover with a different pin out plug. In the instructions for the holley, it says to use the factory pinout plug. So I unplugged the pigtail that was on the cover and plugged in the original connector.
If it's not a bad cam sensor connection, can anyone recommend what my next step would be to trying to resolve this issue? I don't think it's got anything to do with the reluctor wheel gap because as I said, the car had been running perfectly for a few weeks before this issue.
Running into an issue with my car.
LY6 BTR stg 3 NA cam swapped foxbody with the terminator x powering it.
Car has ran great, started up no problem multiple times, drive it around the block a few times etc etc.
I changed my fuel line setup because my post filter was in the engine bay by the headers, so I moved it back behind the rear axel and changed my fuel supply line from a Y that branched into each fitting to a T fitting from passenger side to driver side.
Moved my fuel regulator from side wall to fire wall.
Started the car with 1 muffler off, started right up ran fine etc.
Took both mufflers off, car wouldn't start.
Put both mufflers on, car wouldn't start.
Pulled the spark plugs, fouled, cleaned and reinstalled. Car started right up.
I've had to clean and reinstall the plugs about 3 times now.
This time, I started up the car, didn't even have to crank it for a second and it started up great.
Pulled the car out of the garage to do some work to it.
Finished the work and tried to start the car, nothing.
Pulled the plugs, not that bad but still cleaned and reinstalled.
No fire.
Checked the Terminator and I've got a red light on 6 which is cam sensor.
So, when I was originally wiring up the car, the BTR cam comes with a new timing cover with a different pin out plug. In the instructions for the holley, it says to use the factory pinout plug. So I unplugged the pigtail that was on the cover and plugged in the original connector.
If it's not a bad cam sensor connection, can anyone recommend what my next step would be to trying to resolve this issue? I don't think it's got anything to do with the reluctor wheel gap because as I said, the car had been running perfectly for a few weeks before this issue.
05-20-2022, 08:21 AM
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I unplugged the cam sensor, tried to start, backfire.
plugged the sensor back in and tapped it a few times. Car almost came to idle, got up to 400rpm but voltage was only at 11 so might be too low to start.
The spark plugs were brand new NGK 4177’s with their V design, and don’t even have an hour on them. That’s why im trying to just clean and reuse.
05-20-2022, 09:13 AM
#4
TECH Senior Member
Usually a bad cam sensor will allow it to start, if not the first, then second try.
All it does is tell the ECM which stroke #1 is on.
If not working, the ECM figures it out before the second try.
All it does is tell the ECM which stroke #1 is on.
If not working, the ECM figures it out before the second try.
05-20-2022, 09:35 AM
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got my truck jumper cabled to the battery. Did a relearn on the terminator, unplugged main harness for about a hour.. cam sensor red light still on.
all i can smell is unburnt fuel now.
maybe ill pull plugs, clean and retry again
05-20-2022, 10:01 AM
#6
If plugs are bad they CANT be cleaned and re-used no matter how long of run time they have on them. With fouled plugs its not going to want to start. Holley hates low voltage, it will start at 11 but thats border line for it to work. You can run it in batch fire mode, if it runs normal then you have a cam sensor issue. If its flagging the cam sensor its either the sensor or your wiring.
05-20-2022, 12:04 PM
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If plugs are bad they CANT be cleaned and re-used no matter how long of run time they have on them. With fouled plugs its not going to want to start. Holley hates low voltage, it will start at 11 but thats border line for it to work. You can run it in batch fire mode, if it runs normal then you have a cam sensor issue. If its flagging the cam sensor its either the sensor or your wiring.
i jumped the car to my truck to make sure I had good crank voltage.
i just changed the sensor.
i took a datalog of the crank and am just leaving walmart with the adapter to plug my simcard into the computer and will post it here.
It very well could be the wiring as I did have to fight with getting my fuel lines in because my harness comes out from the firewall close to one of the fittings.
I’ll recheck the wiring tomorrow if the datalog cant resolve the issue.
05-20-2022, 03:36 PM
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https://drive.google.com/drive/folders/1LpGhSulWjIZexsOi1zR5JzqmFRFA5EQH?usp=sharing
Here's my datalog, 12 second crank.
Hoping someone can pick this apart for me, thanks.
Got ahold of Holley tech and they're going to look at it as well.
Here's my datalog, 12 second crank.
Hoping someone can pick this apart for me, thanks.
Got ahold of Holley tech and they're going to look at it as well.
Last edited by Unlimited15; 05-20-2022 at 06:31 PM.
06-11-2022, 11:14 AM
#11
What I have found is Holley isn't nearly as concerned with the cam sensor, as the crank. I can't look at your log on my phone, but will try to remember later. Make sure your grounds are good. This almost sounds like a wiring gremlin being a little inconsistent.