i have a 94 Prelude VTEC, and the stock tach when at idle just sits at 1600 rpms, and doesn't move, even though the car is idling normally, then on occassions it'll jump up to 6900rpm, and just get stuck there for no reason..

can you guys help?

thanks.

 

mines doing the same thing...cant figure it out

 

Have you guys messed w/ any of the wires lately? Mine did that and I found it to be that one of the wires was grounding out.

 

someone today, on another forum told me to check the light blue wire that's inside the distributor, he said more then likely the contact on that terminal is dirty/loose.

vnt

 

which wire?

thanks

 

Mine did the same thing, my mechanic replaced the distributor module and it has been jus like new ever since.

 

yeah same here. First tach started going crazy next day car stalled distributor was no good. Replaced it and perfect since.

 

yeah check the blue wire, its the tach signal wire coming from the distributer, if that is messed up your tach won't read a RPM, another check would be to see if your Cruise control works becasue this also uses the tach signal fromteh distributer, thought the a breakage in teh wire could be somewhere up by the gauge, and ur cruise will still work

 

great...i'll check it out.

vnt