vr manual conversion speedo
hey,
i have finished my manual conversion on my vr v6, it runs really good everrything i fine except for one thing. i cant for the life of me get the speedo working.
i have read all the posts about doing the wiring and i have searched like 1000 times to get as much info as possible but it is still dead.
i have a 12+ and a ground going to the sensor, my signal wire is going from the sensor to the speedo side of the ecu.
the only thing i can think of is to disconnect the signal wire from the ecu so its going straight to the speedo?
but i have heard that this is what causes the stalling problem?
any help is much appreciated
thanks heaps guys
Banned :P
If you are retaining the auto ECU then you need to bypass the ECU in regards to the speedo.
E.G The signal wire running up to the ECU, cut it, then the output wire (Purple with a white stripe I THINK!, not sure) attach the two and bobs someones uncle.
You should check out the HowTo section, there is a very good write up with pics.
ok i did have the signal wire going from the speed sensor into the ecu (just spliced it into the purple white wire) and the speedo didn't work, so i removed the pin from the ecu plug so the signal wire was going straight to the gauge but still nothing. my ground and 12v are still good.
any1 have any ideas
anyone got any ideas i really need help on this, i have no idea anymore what it could be
Have you checked the speed sensor is still all good?
I know when I converted my VR to manual, as we were bolting the lot back together in a hurry we managed to break the purple signal wire going into the sensor. Except then it touched the body and got very crazy jumpy speedo sensors
It sounds like you bypassed the ECU correctly with the wiring up there from what I remember
yeah i have tryed 2 different sensors now, this farken sucks no matter what i try it still stays dead as a dodo, any more ideas guys??????
booosted
YouTube - ‪How to Test a 3 Wire Speed Sensor‬‏Originally Posted by giffo2010
If it works than you have wired it wrong or the speedometer output shaft is not turning to create a signal.
Power is measured in DECIBEL
It shouldnt be the sensor, its the second one i hav tried. And the wiring looks fine, i changed my 12v and ground to run straight off the ignition annnd still nothing. Wat the FARK
booosted
something is obviously wrong, no point asking what it could be unless you can test it....
Power is measured in DECIBEL
i'm just trying to get as many possibilities as i can just incase i have forgotten to do something
ok i just tested the speed sensor and it works, the wiring is exactly how ive been told to do it, the fuses are all good.
i am completely mind ####ed on this, it seems like i have tried everything.
i will pull the cluster out and check the cog and see if its still good, but it was working when it was auto
anything else i shold look for on the cluster? all i can think of is the cog and maybe re-sit the needle?
thanks guys hopefully i can get this sorted
cluster looks fine, the needle moves easily. ok #### this i'm just gonna pull all the wiring out 2morro and start all over again. FML
booosted
were you able to test for pulse whilst the car is in motion? maybe get a helper, if all checks out then got to be wiring, maybe post a pic how you have done it..
Power is measured in DECIBEL
I pulled the speed sensor out to test it, how do i test it in motion? Ive got the old girl on stands atm to test the speedo so i dont have to keep driving it around the block to test it haha, thespeedo should still work if the wheels arnt on the ground tho ay?
I just had the multimeter hooked up, turned the car on, let the clutch out and it worked on the multi meter. So somehow its just not getting to the gauge.
these are the pictures i have taken..
i have taken the purple/white wire out of the white plug and attached the signal wire to it.
would the bcm have anything to do with it? i thought it was all through the ecu
on holiday
you are connected to the purple wire on the dash side of the plug not the ecu side of the plug
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
yeah i everyon is saying that it is meant to be connected to the dash side not the ecu side, is that wrong?
on holiday
nope its right where did you run the earth wire to from the sender
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
Banned :P
no it is correct, you must bypass the ECU and go straight to the dash, but as you said, you have done this. does your VR have the speed alert thingo, if you hold down the up and down buttons while you turn the car on it should become a digital speedo.
If that works then you know to look at the cluster, if it doesn't work then recheck all the wiring and quadripple check the wiring again.
Oh and get a test light and make sure that you are getting power when you are meant to be getting it. I did one of these for my mate once because he had rushed his install and wired it up so the speed sender only had power in reverse, I don't know wtf he did, only took me five minutes to fix though.
yep i'm running my power wires directly from my ignition barrell, tested it with a test light and it comes on with the ignition
Banned :P
Just humour me and try pinching it from your cigar lighter instead, Confirm that the cigar lighter works though and use the main wire, not the backlight wiring, ensure you have a good earth too.
The best setup would be to go to the fuse panel, notice how you have several spare spots with power to them, put a fitting in and a 15 amp fuse, run the wire down and use that but its up to at the end if the day.
i think i'll pick up some more wire from supercheap 2morro and re-wire the whole thing. if it still doesn't work i'll have a look at getting an auto electrician out to my place to have a peek.
booosted
Make sure you wire it to C12 at the PCM http://www.oldholdens.com/temp/carst...0V6%20Auto.jpg
Power is measured in DECIBEL
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