Hi everyone,

I recently purchased a 1998 Honda Civic CX hatchback to build into a nice streetcar. I picked up a Civic EX cluster with a tach for the car and after installing it the tach is all over the place.

Usally when I start the car the tach goes to to 5,000 and reads from there after letting it warm up it usally comes down to around 1,000 rpm. Also sometimes when I turn off the car the needle drops down to the right side of the tach.

When I first installed the cluster I got a check engine light for the CFK sensor and performed the CFK bypass. This got rid of the CEL but I’m still having the same issues.
I read a couple post with people that had this issue but with no solutions. Has anyone had this issue and found a solution?

The people I bought the car from performed a d series engine swap. The head is a P2A-7 with a ZC block.

That seems like quite a bit of work, my skills with the soldering iron isn’t all that great. I rather just go hunt down another tach from the salvage yard or eBay. Thanks for the reply.

Thanks for your input. I’ll start looking into that. Is there anything in particular that I can do to find out if the problem is either the tach or ICM or the whole distributor?

Yeah, I’m thinking it’s the tach and not the ICM. The only problem I’m having is the tach and I’m not experiencing any of the symptoms people usually have with a failing ICM.

I’m looking into getting an Omni tach to replace the one in my car. Does anyone have any experience with it?

I saw a review posted by HT member SHRUGS* on the Omni tach and he seemed pretty happy with it. I have also seen on numerous occasions where people has stated that the stock tach isn’t all that accurate at high rpm.

I just a little update, I got the Omni tach and everything seems to be working fine now.

Thanks for the help everybody.