speedo works... some times.

[d16y8_93_civic_lx]

ok got a 93 civic lx swaped out the 1.5 for a 1.6 vtec "d16y8" after the swap my speedo only works about 1/2 of the time.

i had to use alot of things from the 1.5 due to the fact i didnt get the ecu for the d16y8 i reused the throttle body, intake manafold, injectors, and fuel rail. i have tried using the distributer from both engines with the same results. i have replaced the speedo sencer and no change.

the speedo worked fine before the swap and is accurate when it does work now.

i have also recently converted it to a 5 speed and still the same problem.

i dont know what else could be the problem.

 

[wanderinman]

Could be a grounding issue, especially if it is intermittant like you say. Check all the wiring associated with the system for any frays/loose connections.