Wrong Rev Shown On Factory Tachometer

[mr33gts4]

Hi guys, l was wondering if anyone has had the same problem as me and how you would fix the problem. All of a sudden, when l started my car, the rev shown on the factory dash was 2k and over time it dropped back down to 1k. But when l connected it up via consult and by the volume of my exhaust, the engine was actually idling at about 700rpm(stock).

Does anyone know how l can correct the tachometer? The dash has never been removed or adjusted in anyway as far as l know.

Thank You All

[mr33gts4]

anyone?

[ignuz]

Do a search mate, there's heaps and heaps of threads on idle issues.. None are that different from yours..

1. Idle reset http://www.skylinesaustralia.com/forums/Di...amp;hl=fix+idle

2. Idle issues with forum responses http://www.skylinesaustralia.com/forums/Id...amp;hl=fix+idle

[Eug]

by the volume of my exhaust, the engine was actually idling at about 700rpm(stock).

so you are guessing the idle rpm by ear/volume?

SR20DET S13 Nick?

[XRAIDER]

Sounds like your tacho is on its last legs, mine started out like that then it went nuts flicking back and forward.

I havnt been able to fix mine but i think it could be an earth problem because if i tap the dash it will either die all together or work normaly for 5 mins then play around again.

Any one know how to fix this glitch?

[mr33gts4]

hi guys, ive diagnosed the problem on Consult and it says im idling at 700 whereas the tacho says 1500-2000rpm, so its off by between 500-1500RPM.

Ive done a search and nothing seems close to what this problem is. Has nothing to do with the AAC Valve as the correct idle speeds are shown from the ECU.

Do you think l should just change the dash?

[inthisglass]

to put it simply

your tacho is stuffed

mine did that then completely stuffed up

i just bought a second hand cluster and put it in, its the cheapest way

[ignuz]

so you are guessing the idle rpm by ear/volume?

SR20DET S13 Nick?

Ca18det

It has the goods though!

Lots of fun to drive, alot different to N/A in terms of power delivery. Still getting used to that.