LS1 to 5.3, trouble with cam sensor, please help!
Thread Starter
Teching In
Joined: Jan 2020
Posts: 7
Likes: 1
LS1 to 5.3, trouble with cam sensor, please help! Hi Guys,
I have a AMC Hornet here in Australia that Im rebuilding,
It was a LS1 with the rear cam sensor, now a front sensor as with the LS2
I have the half moon timing gear and the the reluctor wheel has been changed from 58x to 24x by the machine shop.
I have got it to fire up, but runs very rough and will not idle
When you are turning it over, it labours and loads up like the timing is out (like an old school engine)
I have extended the CPS wiring to get it down to the front and tried swapping the outside 2 wires around
Then depinned it and tried every configuration in desperation
Im using the same harness that was on the car to start with, which was fine.
I have all the earths on around the engine, although one was off at first
Im still to double check the fuel pressure
My tacho does crazy **** while its turning over aswell, will shoot up to 5-6k and then down and up again?
Any ideas?
Cheers
Zappa
I have a AMC Hornet here in Australia that Im rebuilding,
It was a LS1 with the rear cam sensor, now a front sensor as with the LS2
I have the half moon timing gear and the the reluctor wheel has been changed from 58x to 24x by the machine shop.
I have got it to fire up, but runs very rough and will not idle
When you are turning it over, it labours and loads up like the timing is out (like an old school engine)
I have extended the CPS wiring to get it down to the front and tried swapping the outside 2 wires around
Then depinned it and tried every configuration in desperation
Im using the same harness that was on the car to start with, which was fine.
I have all the earths on around the engine, although one was off at first
Im still to double check the fuel pressure
My tacho does crazy **** while its turning over aswell, will shoot up to 5-6k and then down and up again?
Any ideas?
Cheers
Zappa
Thread Starter
Teching In
Joined: Jan 2020
Posts: 7
Likes: 1
Thanks for the reply,
I have swapped the wires around each way to see if it makes a difference
It does change how the car behaves, if i put them back to LS1 way, it will have a backfire out the exhaust every now and then
I have just extended the wires, didint worry about a harness, and Ive read alot where they are wired wrong anyway
Are all the cam sensors the same through the early ls2 (24x) and the later 58x ?
I have swapped the wires around each way to see if it makes a difference
It does change how the car behaves, if i put them back to LS1 way, it will have a backfire out the exhaust every now and then
I have just extended the wires, didint worry about a harness, and Ive read alot where they are wired wrong anyway
Are all the cam sensors the same through the early ls2 (24x) and the later 58x ?
On The Tree
Joined: Feb 2013
Posts: 183
Likes: 7
Thanks for the reply,
I have swapped the wires around each way to see if it makes a difference
It does change how the car behaves, if i put them back to LS1 way, it will have a backfire out the exhaust every now and then
I have just extended the wires, didint worry about a harness, and Ive read alot where they are wired wrong anyway
Are all the cam sensors the same through the early ls2 (24x) and the later 58x ?
I have swapped the wires around each way to see if it makes a difference
It does change how the car behaves, if i put them back to LS1 way, it will have a backfire out the exhaust every now and then
I have just extended the wires, didint worry about a harness, and Ive read alot where they are wired wrong anyway
Are all the cam sensors the same through the early ls2 (24x) and the later 58x ?
They are very different. I don’t know about the actual sensor.
Thread Starter
Teching In
Joined: Jan 2020
Posts: 7
Likes: 1
If the crank sensor or wiring is faulty, will it run at all?
This harness was fine when I had it running on the ls1
Thread Starter
Teching In
Joined: Jan 2020
Posts: 7
Likes: 1
Im going to remove the rear part of the harness and pull up onto the manifold, its pretty tight back there.
Ill check for the earths (the 2 on the front and rear of the engine are there)
And just run through the connections and plugs
Ill check for the earths (the 2 on the front and rear of the engine are there)
And just run through the connections and plugs
