LSEJ

Hey guys im new to honda tech ad have been having some issues with my tach and fuel gauge after my swap. i have a 96 ek dx obd2a and swapped in an obd1 ls with obd1 p75 and jumper harness. the tach and fuel gauge worked fine before the swap and im at a loss of where to start looking. Does the signal wire come from the blue dizzy wire or from the ecu? also not sure why the fuel gauge stopped working at the same time. I swapped out clusters and had the same issue. if anyone can help out a beginner i would appreciate it. thanks

tony_2018

From the izzo.

NVturbo

"BLUE" tachometer wire is at the driver side plugs (engine) near the clutch/brake reservoirs. Make sure it's seated properly.

LSEJ

I reseated it but i noticed a single blue wire that has a rubber plug on it. Would that have anything to do with it?
also the tach is getting signal but it idles at 8000 rpm

LSEJ

Bump

NVturbo

that's not the same wire

LSEJ

Ok do you know why my fuel gauge would stop working aswell as the tach acting up? Could the issue be in my jumper harness?

LSEJ

EDIT: plugged in my old obd2 ecu to see if the fuel gauge would work but it is the same ruling out the jumper harness

tony_2018

You have other issues.

LSEJ

could you be more helpful?

tony_2018

obd2a vehicles don't get their tach sensor from the ecu, so that means your distributor provides that. If the tach wasn't working before and your fuel gauge is throwing a fit than you have other electrical issues you need to hunt down.

LSEJ

Ok i have begun tracing my steps during the swap and im gunna start with the dizzy wiring. Printed put all the wiring diagrams. Should be a fun day lol

LSEJ

UPDATE: got the cluster working properly some wires were crossed at the dizzy plug but i am now having trouble starting the car. Itll start then die after a few seconds.

LSEJ

UPDATE: realized i had an obd0 dizzy plug so rewired everything. Car starts cluster is good but it is in limp mode and wont rev past 3500 rpm