Bit of a lengthy one.....R32 conversion running issue

Discussion in 'VR5, VR6 & Wx' started by JaySteed606, Jul 27, 2014.

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  1. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Let us know how it goes.
     
    Toyotec, Jul 29, 2014
    #21
  2. TAKS

    taks CGTI Committee Paid Member

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    Hi
    Did you have a read of the 24v thread on the corrado forum
    We went over a lot of the issues there.
    I wrote up the chain check and vss stuff on there
    Cheers
     
    taks, Jul 29, 2014
    #22
  3. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Taks,

    Could you ping us a linky?
     
    Toyotec, Jul 29, 2014
    #23
  4. TAKS

    taks CGTI Committee Paid Member

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    taks, Jul 29, 2014
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  5. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Thanks.
     
    Toyotec, Jul 29, 2014
    #25
  6. JaySteed606

    JaySteed606 Forum Member

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    Good news! Pulled the T121 plug apart and all the redundant connections are in the plug, so crimped up a pin 54 and took a feed straight off G1/11 as I'm missing a W plug.

    Bad news. It didn't work.

    I'm also measuring -12CF on measuring block 91 so that'll be the chains that need doing.
     
    JaySteed606, Jul 29, 2014
    #26
  7. MUSHY 16V

    MUSHY 16V Moderator Staff Member Moderator

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    They recon you should change them if it's more than +or- 8
    But saying that the fig you get is only a guide as you would need to know what it started out at when it was new to know if the chains had stretched or not

    But with it being that high and if it's getting a faults for the timing I'd change them or at least have a good look at them
    You hear of them snapping at 50k then others are fine at a 100k

    Most r32 are on a long service 20k between oil changes that is the main problem if you ask me

    My friends r32 was quite low miles hi 50's
    Yet another acquaintance his was at over 100k and was fine
    Strange
     
    Last edited: Jul 29, 2014
    MUSHY 16V, Jul 29, 2014
    #27
  8. MUSHY 16V

    MUSHY 16V Moderator Staff Member Moderator

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    Out of interest what did the other cam read
    His was -5 I couldn't get a reading on the other one
    But we never got round to checking it on on 90 and 91

    He sold it on after getting all parts to fix it
    Think the running costs put him off lol
     
    MUSHY 16V, Jul 29, 2014
    #28
  9. JaySteed606

    JaySteed606 Forum Member

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    Well I'm on the hunt for a replacement box, as there's a few noises I don't like. It just makes sense to pull the engine and do the chains & box all together. Of course the chains aren't difficult with the engine out, it's just frustrating I have to pull it again.

    Prob a good thing my revs are limited until that is sorted.
     
    JaySteed606, Jul 29, 2014
    #29
  10. MUSHY 16V

    MUSHY 16V Moderator Staff Member Moderator

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    Aye it's a no brainer if the engine coming out anyway

    Don't look that bad a job to do
    It just the cam adjusters that looks fiddly

    Should be a cracking once you've got it running right
     
    MUSHY 16V, Jul 30, 2014
    #30
  11. rubjonny

    rubjonny Administrator Staff Member Admin

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    assumign you have mk2 clocks it probably didnt work because G1/11 is speed input for clocks from the speedo sender on the engine. W/1 is speed output from clocks for cruise, speed sensitive volume control, ecu, spoiler module etc. so get a W plug ;)

    if you have a speedo sender in the gearbox wired up to g1/11 then it may work, but im not sure if the signals are the same...
     
    Last edited: Jul 30, 2014
    rubjonny, Jul 30, 2014
    #31
  12. JaySteed606

    JaySteed606 Forum Member

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    I am using mk3 VR clocks and speedo sensor on the gearbox. Will the signal change coming out of the clocks? As a temporary measure, I can put a small spade connector on while I source a W plug.
     
    JaySteed606, Jul 30, 2014
    #32
  13. rubjonny

    rubjonny Administrator Staff Member Admin

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    ahh ok cool, I'm not 100% sure if the signal is the same on the speedo sender on box and the clock VSS output? the spade may be a good plan anyway see if it works then. if not then you will have to get the ecu played with to either read the signal from pin 54 or disable the limiter without a speed signal.

    alternatively maybe you could run mk4 or mk5 clocks instead? not 100% if the mk4 clocks output VSS via can-bus but obviously mk5 units will

    you might be able to get a can-bus unit thing that can add the vss pulse into the ecu can-bus, there are ones that can pull the rpm signal out
     
    rubjonny, Jul 30, 2014
    #33
  14. JaySteed606

    JaySteed606 Forum Member

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    I think i'll try and then it'll be onto ecu coding. I want to get all the unrequired equip & secondary lambdas taken out any way.

    Looking on the BDB wiring diagram, there isnt a speed input from what I can see. Because its a *******ised setup anyway, im not confident using the mk5 clocks would resolve.

    Back onto the drive tonight!
     
    JaySteed606, Jul 30, 2014
    #34
  15. rubjonny

    rubjonny Administrator Staff Member Admin

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    yeah on these cars the VSS is read from the clocks via the CAN-BUS, so no separate wire for it, same goes for rev counter the other way
     
    rubjonny, Jul 30, 2014
    #35
  16. SCRUFFYDUBBER

    scruffydubber Paid Member Paid Member

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    If you have no luck.

    Just a thought that maybe worth looking into.
    Your donor ECU/engine is from a DSG car (I assume your running it with a manual box). R32 DSG had a lower rev limit when selected in neutral. They also had a launch control (rev limit) when selected in sport and the brake and accelerator are pressed.

    Maybe your ecu thinks it's in one of these conditions??
    If this is the case you should be able to have it coded out.
     
    scruffydubber, Jul 30, 2014
    #36
  17. JaySteed606

    JaySteed606 Forum Member

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    Thanks for that feedback. I've concluded it will need some coding to resolve, as I've hooked up pin 54 to W1 and there no improvement. I did discover by accident however, that before the coolant temp exceeds 70C it will pull cleanly to 7250rpm. Felt good, wish it did it all the time!

    So I need a new box, change the chain and get the ecu fettled. Any suggestions for coding and a decent box are welcome.

    I did decide enough was enough and ordered a pukka Vagcom lead today....going to be another expensive month.
     
    Last edited: Jul 30, 2014
    JaySteed606, Jul 30, 2014
    #37
  18. JaySteed606

    JaySteed606 Forum Member

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    So in cam chain news.....

    My pukka Vagcom lead turned up and I quickly dived onto measuring blocks 208/209. I'm seeing proper KW values, reading +3 on intake but blank on exhaust. I'll swap the sensors round to see if the fault follows, but fingers crossed the chains aren't out of tolerance and Vagcom has just paid for more than half of itself.
     
    JaySteed606, Jul 31, 2014
    #38
  19. rubjonny

    rubjonny Administrator Staff Member Admin

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    on a VSS related note, I was just going thru some CE1 digifiz wiring diagrams and it turns out the speedo sender signal on those is also wired direct to the stereo, which pretty much confirms they are the same signal I recon :thumbup:
     
    rubjonny, Aug 1, 2014
    #39
  20. JaySteed606

    JaySteed606 Forum Member

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    Very good. Although im starting to believe ive got a mismatch between engine & ecu. My A3 BDB engine has the earlier black cam sensors, where as the ecu is from a TT BHE engine which I understand uses the later grey cam sensors which is where my issue with not reading the exhaust cam stems from.

    Now, if I can find a BDB ecu, I should be able to resolve the speed signal issue as that shouldnt be CAN!

    Moral of the story, never buy someone elses project.
     
    JaySteed606, Aug 1, 2014
    #40
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