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Model specific boards => Golf mk3 => Topic started by: Booney907 on 24 August 2011, 23:25

Title: Rev counter reading wrong
Post by: Booney907 on 24 August 2011, 23:25
Hi
I've recently replaced my Mk3 Gti 8v clocks with some VR6 ones as my 2nd lcd display wasn't working which annoyed the hell out of me  :angry:

They work great except the rev counter is out, thought this might happen as there from a VR6, anyone know of a fix for this? or should i just live with it?

Not sure how much out they are, it's idling at 500 instead of the 1000 it used to

Any suggestions would be appreciated :grin:

Cheers

Chris
Title: Re: Rev counter reading wrong
Post by: Wayne on 24 August 2011, 23:32
I think you need to switch back to 8v clocks, don't think the speedo will be correct as well.
Title: Re: Rev counter reading wrong
Post by: Booney907 on 24 August 2011, 23:35
Really? Hmmm Looked about right, will do a rolling test with me sat nav and check
Title: Re: Rev counter reading wrong
Post by: Wayne on 24 August 2011, 23:36
Really? Hmmm Looked about right, will do a rolling test with me sat nav and check

8v is 140mph, 16v and VR is 160mph from memory
Title: Re: Rev counter reading wrong
Post by: boneybradley on 24 August 2011, 23:38
the rev counter wont read correctly due to them being set for 6 cylinders, you can use 16v clocks and they will be accurate (and I recon the speedo will be fine on both as that uses a pulse from the drivetrain rather than from the engine)
Title: Re: Rev counter reading wrong
Post by: dom on 24 August 2011, 23:46
I've got an old set of non-working clocks that I was about to bin, I can take the lcd screens out and stick them in the post if you like? You can maybe repair your old 8v clocks?
Title: Re: Rev counter reading wrong
Post by: Booney907 on 24 August 2011, 23:48
Yeah they are 160mph and the 8v 140 or 130

As long as the speedo is ok i'll keep them, i'd rather have a rev counter reading a little wrong than my old clocks with an illuminated lcd that doesn't display anything
Plus the LED bulbs display so much better with these as i could remove the filter, old ones were quite dim

I suppose if the rev counter annoys me enough i'll be on the lookout for a VR6 lump sooner than expected! lol
Title: Re: Rev counter reading wrong
Post by: Booney907 on 24 August 2011, 23:54
Cheers anyway Dom but i think it's a bit more than just the LCD, if you disconnect the clock and reconnect it displays fine, then after 5 mins it shows a small bit of some writing, i can still see the arrow showing whether it's on mpg, temp etc but the mfa button doesn't move it at all, think the actual board is glitched/fried somewhere
Title: Re: Rev counter reading wrong
Post by: dom on 24 August 2011, 23:58
Cheers anyway Dom but i think it's a bit more than just the LCD, if you disconnect the clock and reconnect it displays fine, then after 5 mins it shows a small bit of some writing, i can still see the arrow showing whether it's on mpg, temp etc but the mfa button doesn't move it at all, think the actual board is glitched/fried somewhere

Fair enough, I had a screen go in my first Mk3 and it was just a case of replacing it. Yours sounds as if it's something more sinister though :grin:
Title: Re: Rev counter reading wrong
Post by: VR6_Wherry on 25 August 2011, 16:55
Cheers anyway Dom but i think it's a bit more than just the LCD, if you disconnect the clock and reconnect it displays fine, then after 5 mins it shows a small bit of some writing, i can still see the arrow showing whether it's on mpg, temp etc but the mfa button doesn't move it at all, think the actual board is glitched/fried somewhere

Fair enough, I had a screen go in my first Mk3 and it was just a case of replacing it. Yours sounds as if it's something more sinister though :grin:

Feel free to post them to me!  :grin: :kiss:
Title: Re: Rev counter reading wrong
Post by: dom on 25 August 2011, 18:05
Cheers anyway Dom but i think it's a bit more than just the LCD, if you disconnect the clock and reconnect it displays fine, then after 5 mins it shows a small bit of some writing, i can still see the arrow showing whether it's on mpg, temp etc but the mfa button doesn't move it at all, think the actual board is glitched/fried somewhere

Fair enough, I had a screen go in my first Mk3 and it was just a case of replacing it. Yours sounds as if it's something more sinister though :grin:

Feel free to post them to me!  :grin: :kiss:

The clocks or the screens? They're in the bin but I can fish them out?
Title: Re: Rev counter reading wrong
Post by: Booney907 on 25 August 2011, 20:55
Just checked the speedo using the sat nav and it's fine, it's about 2mph out but if i recall correctly so is my van, at 50mph the nav said i was doing 48mph and at 100mph (i mean 70!  :wink: :laugh:) i was doing 97 so it looks all good
Title: Re: Rev counter reading wrong
Post by: gasketface on 25 August 2011, 22:35
Speedo's are always out.They always show more than the real speed.They are made like that.