Cam sensor P0343 related to crank reluctor wheel?
02-18-2017, 05:06 PM
#1
Cam sensor P0343 related to crank reluctor wheel? I just started a gen IV 5.3 that I did a basic rebuild on.
Also did the AFM delete.
It started out as a 2007 long block. I swapped the 58x reluctor wheel with a 24x, installed a 1x timing gear with a stock LS1 cam.
The pcm is a 2002 silverado that I used HP Tuners to program.
I changed the cam sensor today and had to remove the front cover because it was stuck
This is in an S10 and I did all the wiring. It does get battery voltage and ground at the sensor plug, I don't know how to check the signal.
What I really need to know is if this code can be caused by the reluctor wheel on the crank being a little off, or is it in the wiring?
It runs ok, hard to start. The fuel pressure is 65 psi, another problem I need to fix.
Also did the AFM delete.
It started out as a 2007 long block. I swapped the 58x reluctor wheel with a 24x, installed a 1x timing gear with a stock LS1 cam.
The pcm is a 2002 silverado that I used HP Tuners to program.
I changed the cam sensor today and had to remove the front cover because it was stuck
This is in an S10 and I did all the wiring. It does get battery voltage and ground at the sensor plug, I don't know how to check the signal.
What I really need to know is if this code can be caused by the reluctor wheel on the crank being a little off, or is it in the wiring?
It runs ok, hard to start. The fuel pressure is 65 psi, another problem I need to fix.
02-18-2017, 10:21 PM
#3
FormerVendor
Join Date: Feb 2015
Location: Indiana
Posts: 147
Likes: 0
Received 0 Likes
on
0 Posts
Cam sensor Having the sensor wired wrong is probably the most common problem for that code in these kinds of swaps.
Other common causes are:
Other common causes are:
- using an extension harnesses instead of an adapter harnesses (that effectively doesn't change the wiring when you want it to)
- using an adapter harnesses instead of extension harnesses (that changes the wiring when you didn't want it to)
- keeping/not keeping the OEM front cover mounted jumper harness (depending on what your wiring harness is designed for)
02-19-2017, 12:12 PM
#4
Well I don't know what happened. It starts ok now but misfires a lot.
It didn't misfire before but took forever to start.
The reference voltage is 12 volts for this sensor right? Could I have messed the sensor up by having the wires swapped?
The only code I'm getting is for misfire.
It didn't misfire before but took forever to start.
The reference voltage is 12 volts for this sensor right? Could I have messed the sensor up by having the wires swapped?
The only code I'm getting is for misfire.
02-19-2017, 07:40 PM
#5
FormerVendor
Join Date: Feb 2015
Location: Indiana
Posts: 147
Likes: 0
Received 0 Likes
on
0 Posts
24x cam and crank sensor voltage Yes, the camshaft position and crankshaft position sensors on the 24x engines are powered by/operate at 12v.
The 58x sensors operate at 5v.
The 58x sensors operate at 5v.
Well I don't know what happened. It starts ok now but misfires a lot.
It didn't misfire before but took forever to start.
The reference voltage is 12 volts for this sensor right? Could I have messed the sensor up by having the wires swapped?
The only code I'm getting is for misfire.
It didn't misfire before but took forever to start.
The reference voltage is 12 volts for this sensor right? Could I have messed the sensor up by having the wires swapped?
The only code I'm getting is for misfire.