homercan2

Currently having issues with my 93 Honda Del Sol with tach and rough idle (literally sounds like cams on a muscle car). Swapped a b18c1 with a rywire b series buget harness. Bolt on's are Skunk2 IM, Skunk2 throttle body, Skunk2 headers and HMotorsports p72 ecu powered by odyssey extreme. Pulled cel code 9, which could explain rough idle, except after I flushed the radiator and replaced with actual Honda radiator fluid, the car started up strong and sounded smooth. After several minutes it began idleing again (no exhaust, open headers right now). Blue wire at dizzy is reading strong and on the plug going into the fire wall. It's after that where I can find the signal. Checked all fuses including fuse#15. No splices on harnesses. Trying to figure out where the tach signal is at right after the firewall, is it direct towards the cluster or does it splice into the ecu? I googled and searched H-T, seems a lot of people having same problems and no fix...

tony_2018

blue wire at the driver side shock tower. There should be a wire from there also that leads to the cluster.

homercan2

short simple and sweet, as vague as it was I found it and now have tach, thank you so much!!! Now to take one the rough idle....