Cam postion problem
Cam postion problem All right guys I’ve got a LSX tall deck in a 2001 trans am with LS2 conversion kit. the cars kicks out DTC P0343. I have Ohms CK the harness from extension harness to PCM all good. The ignition wire to sensor has 12v with the key on. Now when the cars runs the hi and lo don’t record any values on HPtunners (see attched data log). I am at a loss as to what is wrong... Also the tach in the car is inop but will read through the PCM..
Last edited by bandit383; Feb 26, 2011 at 05:41 PM.
There was a thread here a few months back about someone who had done the LS-2 conversion and due to a mismatch of parts, his cam sensor was too far away from the cam gear to read correctly. He either had the wrong front cover or sensor, cannot recall which it was...
That is always my first suggestion on this issue! Hard start, tach bouncing or inoperable, and cam sensor high/low voltage codes (in a swap such as this) is almost always those wires needing to be switched!
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im getting same code and rpm tach dont work .....wich wires do i need to swap ? its a 5.3 with a big cam in it ...any pics of the wire? i really dont want to take it back to the shop if its something easy i can do ... thanks
It is easy to do! Find the cam sensor, it has three wires going to it. A-B-C are the wires, just swap A and C in the pigtail.
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oh ok that is easy !!!!!! and the reason its throwing the code (p0343) is because i went from the ls1 to the 5.3 correct ? ( has ls6 intake, bigger injectors,big cam,and stock exhaust for now) .........i dont think the shop got a extention harness ,ill check but if they didint do i still switch the A and C wires ?
Last edited by Big Black SS; Jul 7, 2011 at 05:20 PM.
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Verdad Gallardo It is typically throw when you go from a rear-mounted cam sensor (LS1) to a front mounted cam sensor (such as the late model 5.3's) with that extension harness from Caspers.
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Might check that you have a good connection there and to the PCM then. If you didn't extend the wires then you shouldn't need to swap those. Ensure good connection at the sensor, no pinched wires (between the transmission and block particularly), and good connection at the PCM on both banks of wires.
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RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
I have the Casper's harness. Just to be clear, where do I need to swap the wires? The pigtail where it plugs into the sensor itself OR where the Casper's harness plugs into the sensor pigtail?
