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Thread: 2001 gmc z71 5.3 w ls2 cam need info

  1. 07-17-2014 11:44 AM #1
    thusley
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    2001 gmc z71 5.3 w ls2 cam need info

    I am new to this site and would like to start by saying thanks in advance for any help
    which I may receive!
    I built a 5.3 for my 01 z71
    I put the flat top pistons in it and a set of 243 casting heads
    I also put a ls2 cam and the ls2 front cover with sensor on it I changed the wiring
    as ness and now I'm setting a p0342 cam sensor low voltage code I've never had any
    issues with the cam sensor wiring before now
    please help as I'm a little confused 01 is a 12v system and the ls2 sensor is a 5v
    setup what can I do?
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  2. 07-17-2014 04:36 PM #2
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    George C
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    Did you swap the cam wires when you moved sensor to front
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
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  3. 07-17-2014 05:20 PM #3
    thusley
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    yes it was setting a p0343 high voltage code
    now I'm getting the 342
    2001 is a 12v system the new sensor works on a 5v setup
    is this my issue?
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  4. 07-20-2014 08:49 AM #4
    thusley
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    so I called Lingenfelter and spoke to a tech about my problem! I used a newer one bolt cam and sprocket
    which was a mistake its a 4x sampling a 3 bolt cam and sprocket is a 2x and no one makes a 2x one bolt sprocket
    at this time so I either live with it or I have to change the cam and sprocket
    does anyone have a ls2 stock cam that is a three bolt setup? I'm on a strick budget expecially since
    I'm a $1000.00 in to this motor already
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  5. 07-20-2014 09:53 AM #5
    George C's Avatar
    George C
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    Ls2 cam sprocket is all you need for a Gen3 pcm. its the 1 x setup and is a 3 bolt setup
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
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  6. 07-20-2014 10:03 AM #6
    thusley
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    yea I made the mistake of using a one bolt cam
    my dumbass mistake just didn't realize the difference!
    no extra money as of now so I guess im just stuck with it for a while!
    I just looked at your build
    Very nice!!!!!
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  7. 07-20-2014 10:42 AM #7
    George C's Avatar
    George C
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    which build the 02 or the 10?

    or swap to a ls6 cam and call it a day once you find cash
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
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  8. 07-20-2014 05:37 PM #8
    thusley
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    the 02
    Im thinking about taking a three bolt sprocket and drilling it out
    then welding up the three holes
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  9. 07-21-2014 04:21 PM #9
    thusley
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    just ordered a new ls2 three bolt cam and sprocket
    hope I can put it in tomorrow or wed afternoon
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  10. 07-27-2014 07:32 AM #10
    thusley
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    new three bolt cam installed with 1x gear
    truck was tuned yesterday and runs great we deleted the egr, the evap, and the rear o2's since I don't have cats
    truck ran a 13.9 in 1/4 and was showing 105 mph on the computer
    we ran her up to 130 but developed a vibration
    she cracked a ujoint on the launch
    im very happy with the results since this is my dd and I was looking for power, good mpg, and still have low end torque
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