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    Thread: Engine crank, but will not start!

    1. Member orau22's Avatar
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      06-22-2012 11:00 PM #1
      So over the past 4 days I have been doing some engine bay clean up and a cam install. I installed a set of TT 264/260 cams, delete SAI, and relocated the battery. Everything went well until I went to start the car. Car cranked hard but would not turn over. I replaced the crank position sensor thinking that was the cause of my issue after talking to a few people. That did not solve the problem.

      The next step was to check timing, so I took everything apart again and timing was spot on. I have now determined that it has to be some sort of electrical issue/ground issue. I grounded the battery in the trunk to the driver's side seatbelt, I took a wire wheel to the area until it was bare metal. The only other ground I messed with was the engine mount ground which runs from the trans bolt to the frame rail and then split to the battery. I changed this ground so that it did not split and just went straight to the frame rail.

      I am guessing that my ground from the engine to the frame rail is bad and that my motor won't start because of it but I honestly stumped.

      Here are the codes I pulled today:

      Intake manifold changeover valve-n156: open

      Camshaft position sensor (a) circuit bank 1: range/performance

      Camshaft position sensor (a) circuit bank 2: range/performance
      Last edited by orau22; 06-23-2012 at 12:06 PM.
      SLAW [Straightline Autowerks]

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    2. Member orau22's Avatar
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      06-23-2012 12:06 PM #2
      Here are the codes I pulled today:

      Intake manifold changeover valve-n156: open

      Camshaft position sensor (a) circuit bank 1: range/performance

      Camshaft position sensor (a) circuit bank 2: range/performance
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    3. Member orau22's Avatar
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      06-23-2012 02:07 PM #3
      I am pretty sure I am getting fuel, when I try to start it, I can smell raw gas from the exhaust.

      I am pretty sure I am not getting spark, I pulled a plug, put it in the coil pack, grounded it and attempted to start the car and I did not get a spark. I tried on cylinders 1 and 2 with no spark.
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    4. Member orau22's Avatar
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      06-23-2012 03:30 PM #4
      I have check all my ground and they are all good, after trying tons of things and trying to get it to start, I re scanned for codes, I am now showing that I have NO CODES.

      Is my ECU fried?
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    5. Junior Member Twotone24V's Avatar
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      06-23-2012 09:26 PM #5
      Having 2 codes that deal with the camshaft after you just replaced the camshafts ... seems like it is not perfectly timed.

    6. Member orau22's Avatar
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      06-23-2012 10:03 PM #6
      Quote Originally Posted by Twotone24V View Post
      Having 2 codes that deal with the camshaft after you just replaced the camshafts ... seems like it is not perfectly timed.
      i checked the timing twice, i had 16 rollers between arrows, i rotated twice to re-check, cam alignment tool fit right in, i double checked the rollers, 16 rollers between the arrows, i checked to make sure all parts looked like they do in the bentley, and they did, am I completely missing something here?

      I checked all my grounds, they are all good, I am getting power to my coil packs but they are not sparking. I am getting fuel, I pulled a fuel line and when I cranked the car fuel spurted out.

      I am having my friend take my ecu to try it at a car in his shop tomorrow to see if it is my ECU, if not, I guess I am going to have to re check timing for the fourth time, even though I am pretty sure my timing is fine.
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    7. Member orau22's Avatar
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      06-24-2012 11:49 AM #7
      So if my timing is off like everyone is saying, wouldn't the car not sound smooth when I go to crank it. It sounds completely normal, and smooth, just as the car did before. From what people are telling me, if my timing was that off, I would hear some not so good sounds. If it was only off by a tooth, then the car would still start.

      Am I completely wrong?
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    8. Member tractorsosa's Avatar
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      06-24-2012 02:44 PM #8
      [IMG][/IMG]
      that is a pic of my r32 head timmed propely,
      [IMG][/IMG] notice that i did add an extra marks at the ends of the camshafts

    9. Member tractorsosa's Avatar
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      06-24-2012 02:49 PM #9
      and btw the n156 code valve is bcuz, u maybe forget to plug the vacum line at the right bottom of ur intake manifold, the ' T' from the fuel pressure regulator, now check the lil ground at the back of the head under the throtle body attached to the egr too.(brown wire)

      also check with vag com blocks 209 and 210 for timming
      Last edited by tractorsosa; 06-24-2012 at 02:54 PM.

    10. Member orau22's Avatar
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      06-24-2012 03:17 PM #10
      thanks for the picture, if my ecu turns out not to be the problem i will be taking the intake manifold/valve cover off again to re check my timing.

      in order to adjust timing do you have to take off the side timing cover?
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    11. Member tractorsosa's Avatar
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      06-24-2012 03:30 PM #11
      NO, u dont, only the intake manifold and valve cover,
      [IMG][/IMG] if u see this pic u will notice the center shaft has a notch if u can see from the top a notch pointing like a 11 o clock ur time is correct, but u can still have 16 rollers distace and still out of time by the center shaft, and btw do u have bentley? i need a favor need the torque specs for a throw out bearing and clutch if u can thanks

    12. Member orau22's Avatar
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      06-24-2012 03:40 PM #12
      so where is this in relation to the car, is this below the camshafts in the center? I will be able to see this with the valve cover off?

      I am sure I will have more questions so thank you for your time and answers.
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    13. Member tractorsosa's Avatar
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      06-24-2012 03:46 PM #13
      Quote Originally Posted by orau22 View Post
      so where is this in relation to the car, is this below the camshafts in the center? I will be able to see this with the valve cover off?

      I am sure I will have more questions so thank you for your time and answers.
      [IMG][/IMG]

      hey thanks for the link, that pic is not mine if from a member named vwgeorge2, he did this diy while he was supercharging his car, also look in the forums for darksidegti round 2 rebuilt he has a good info about the center shaft cuz he was off 180 and he didnt know lmk if u have any more questions

    14. Member tractorsosa's Avatar
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      06-24-2012 03:58 PM #14
      k, i just took this pic, this is for reference only the notch that im talking about is the one in the big (bottom in the pic) sprocket, that one should be at 11' o clock
      [IMG][/IMG]

    15. Member orau22's Avatar
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      06-24-2012 04:05 PM #15
      i have one more question, does the ECU in our car have the ability to stop spark if the car is out of time, or will the car start out of time?
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    16. Member tractorsosa's Avatar
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      06-24-2012 05:03 PM #16
      Quote Originally Posted by orau22 View Post
      i have one more question, does the ECU in our car have the ability to stop spark if the car is out of time, or will the car start out of time?
      sometimes it will start and run, but sometimes doesnt cuz it will cut the spark

    17. Member orau22's Avatar
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      06-24-2012 05:22 PM #17
      Quote Originally Posted by tractorsosa View Post
      sometimes it will start and run, but sometimes doesnt cuz it will cut the spark
      mine hasn't even started once, i don't believe my timing is off, it hasn't even tried to start or sounded like it was going to start. I am starting to think that my ECU is bad, or my cam position sensor is bad. I am only getting a cam position sensor (a) code. Does this correlate with my intake camshaft, and maybe that one is bad, because I have not gotten a code referring to camshaft sensor (b), only (a).
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    18. Member tractorsosa's Avatar
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      06-25-2012 07:48 PM #18
      [IMG][/IMG]
      [IMG][/IMG]
      [IMG][/IMG]
      [IMG][/IMG]
      [IMG][/IMG]
      [IMG][/IMG]
      [IMG][/IMG]
      [IMG][/IMG]
      Last edited by tractorsosa; 06-25-2012 at 07:50 PM.

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