Weird thing happening to my tach.. help!

[TOTAL_JDM]

Ok so i just went to the corner store to grab a drink and it was raining, so suddenly i came out of the store and im omw home and i notice my tach is acting all strange! just moving up and down as a mofo idk wtf may cause that! :S any ideas?

P.D i was driving normal not flooring it or anything just normal driving

 

[JimmyRos.]

was it revving at idle?

 

[TOTAL_JDM]

nope at idle was normal it happens after 3k range

 

[DailyDB8]

speed sensor or something? your v-tak still works?

 

[TOTAL_JDM]

well idk it seems is doing it lesser now but its still doing it, and i dont have vtec =/ B18B1

 

[yohan1000]

bad wiring?

 

[TOTAL_JDM]

well i dont think so, the car was working good i think it had something to do with the rain, maybe something catched some water idk but its still doing it :S can it have something to do with the Dist ???

 

[dc4whore]

My old civic did that, outa no where and it was the speed sensor, took it out an cleaned it, worked for a little bit and started messing up again, so I ended up just getting a used from the junkyard, and that fixed it.

 

[TOTAL_JDM]

My old civic did that, outa no where and it was the speed sensor, took it out an cleaned it, worked for a little bit and started messing up again, so I ended up just getting a used from the junkyard, and that fixed it.

ohh maybe that could be the thing, weres that speed sensor located??

 

[patrick4588]

tranny

 

[TOTAL_JDM]

k ill check it out, ill let u know whats up, tnx

 

[VTEC420]

It's your destributor, or at least one part of your distributor.

the CKP sensor in the Distributor uses magnetic pickup to send rpm information to the tachometer...

If you're not comfortable working with the distributor and/or electronics take it in somewhere. If you comfortable working with it, than give this link a try to see if it helps. I know is for G2's but its similar to ours.

http://www.g2ic.com/tegtips/engine/10.html

Forget about the Vehicle Speed Sensor though. That's not what controls the Tachometer.

 

[Aussie]

:wstupid: There should be a couple plugs on the back of the distributor, check to make sure there's no corrosion or a wire loose from the back of the plugs. Open them up, if they're dirty get some electrical cleaner and spray them off.