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Weird Tacho Problem, Need Help

SL33K

By SL33K,
in General Maintenance

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SL33K Experienced

SL33K

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Hey Guyz,

This afternoon i had a weird problem with my tacho. When i turned on the ignition to the ON position, the tacho meter started fluctuating up and Down. Withouth even starting the engine. I Switched off and on again and the problem went away.

Anyways, when driving in the city the problem came back and this time even when driving. when i was driving normal at about 2500RPM it was showing about 5000RPM.

Has anyone experienced this? Any help will be appreciated.

I recorded a bit of it while parked. Engine OFF.

video here - http://www.youtube.com/watch?v=xQWx1lAMgF8

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PsYLoR Collaborator

PsYLoR

Posted
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Ive got that problem atm :S

Only thing I can think of is possibly a loose or faulty wire somewhere.... maybe? Ive pulled out the cluster and tacho and completely pulled it apart looking for a bad solder or loose wiring but found nothing, have given the dash a hit which fixed it momentarily. lol

But it has slowly started happening more often for me :S

Other note... I have PFC with controller and it always shows the correct engine revs, even when the taco is going crazy. So for me its either the cluster itself or a wire between the ECU and cluster. I was going to buy a new cluster but I'm sure I read of someone with the same problem and a new cluster didn't fix it. I haven't been bothered to look at wiring as yet though, Anyway - I'd say its either bad wiring or the cluster. good luck.

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SL33K Experienced

SL33K

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  • Author
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Thanx for the reply mate.

Going overseas tomorrow so wont be tryin to fix it untill i get back.

I am planning to open up everything and see if somethings loose. I tapped it too and it worked fine for a while.

Will update here if i fix it.

Cheers,

Vish.

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  • 2 weeks later...
Jmans GTS-T Enthusiast

Jmans GTS-T

Posted
Posted

Ive got that problem atm :S

Only thing I can think of is possibly a loose or faulty wire somewhere.... maybe? Ive pulled out the cluster and tacho and completely pulled it apart looking for a bad solder or loose wiring but found nothing, have given the dash a hit which fixed it momentarily. lol

But it has slowly started happening more often for me :S

Hey man, I'm with you, with the same problem... But b4 buying a new cluster borrow one off someone to make sure it is the cluster....

This looks like a common problem these days :(

Other note... I have PFC with controller and it always shows the correct engine revs, even when the taco is going crazy. So for me its either the cluster itself or a wire between the ECU and cluster. I was going to buy a new cluster but I'm sure I read of someone with the same problem and a new cluster didn't fix it. I haven't been bothered to look at wiring as yet though, Anyway - I'd say its either bad wiring or the cluster. good luck.

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  • 2 weeks later...
DJSimmo Community Regular

DJSimmo

Posted
Posted

bad / dry solder joint some where. I had a similar problem and took my cluster to a repairer in melb and cost me about $80 to get it fixed.

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