HELP: 1995 240sx SE tach problem

[PaddingtonBear]

ok.........heres the deal,

I just bought an s14 the other day and I realized that the tach is not working right. When the car is off, the needle is at 0. When I crank the car, the tach jumps to about 1 to 1 1/2 rpm. As I start driving, the needle slowly creeps up and up, not fluctuating at all with my motor's rpms. If you could please explain to me what the problem is and how to fix it, I would greatly appreciate it. Thanks

[elwesso]

Im just kind of taking a stab in the dark but its probably the cluster.. I thought I remember that the 240s had problems with those? maybe im wrong...

[PaddingtonBear]

anyone else??

[sileightymofo88]

any NISSAN techs??

[PaddingtonBear]

o yeah ^^^ thats my other name whoops

[babowc]

either your sensor is gone.. which i dont know which sensor.. im sure one of the few that goes on the transmission.or your cluster is gone.

my truck had bad tach when the battery was almost dead.. dropped to 0 when brakes were applied.. but that doesnt seem your case.

car drives fine?

[PaddingtonBear]

yep......the car drives completely normal.....and just yesterday the tach started working on my way home....next day.....doesn't work...so i dont know sounds like a bad sensor dont you think?

[KRUZNBY]

I have exact same problem. I start the car and after about 25 minutes of driving it has slowly creeped up until it is pegged out on the trip rest button.

Did you find a solution yet?

[KRUZNBY]

I replaced the ECU for other reasons and it did not fix the tach problem either.

[KRUZNBY]

I finally got around to replacing my tach with another stock one and it works fine! Good luck.