Greetings, I have searched posts pretty closely & havent found any that quite match my symptoms. 1st off I have a 1991 Accord coupe. Two sets of symptoms. 1) With engine running and driving no tach or speedo display 2) I rev the engine up to 2500 3000 RPM and the tach looks lik it is reading right (maybe), when driving the speedo will indicate up to 35 MPH and slowly drops down to 10 MPH w/stopped. Any ideas? Thanks!

 

I forgot to mention I'm also getting CEL code #43, o2 sensor. I wouldn't think that would matter but.....? I'm starting to think I might have a grounding problem. I have had a lot of unrelated elec. issues that come and go intermitantly. Wa da ya think?

 

sounds like your speed sensor

 

Possibly, but in searching other posts it seams like w/ the VSS goes so do odometer and trip meter; mine still increment the millage. Plus wouldn't I be getting a CEL code 17 for the VSS? I'm starting to think there's a bad connection on the speedo PCB (Man I hate taking out the IC, every time I do something else dosen't work)