I have a 1990 240sx coupe with a ca18det swap metric gauges which worked fine up until recently. The tach showed true until recently and it started jumping on me and shooting to redline, the really messed up thing is that my 97 200sx se-r just started doing the same thing. Im just curious if anybody else has experienced this and how to go about fixing it. Any and all help/pointers would be appreciated.
Thanks, Anthony
inaccurate tach
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NicUzumaki
- Posts: 36
- Joined: Tue Oct 13, 2009 1:14 pm
- Car: 240sx-dohc swap
82dodge Rampage[RIP]
Re: inaccurate tach
dirty injectors or a messed tps can cause fluctuation of idle.
so can carbonized spark plugs
so can carbonized spark plugs
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OutToWinPAHC
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1990 Nissan Patrol - Location: PA
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Re: inaccurate tach
Tack is jumping, not idle. I would clean the connections on the cluster, the grounds, and the tach signal wire connection.
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the converted
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'20 Toyota Tacoma - Location: Boston
Re: inaccurate tach
Had a similar issue in my CRX, turned out to be a bad engine ground.
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s1390
- Posts: 30
- Joined: Tue Jan 19, 2010 11:07 am
- Car: 1990 240sx Silvia front end conversion ca18det swap gt2876R
Re: inaccurate tach
thanks for the input guys im gonna try out all your advice and let you know what happens im just gonna be pissed if i have to source another jdm cluster for my silvia anyone know where to find one if i cant fix it cuz mine came with my conversion?