boostedb16a

I have a 99 civic hatch Dx with a obd-1 Gsr obd-1 dizzy and obd-1 p28 hondada. S300
And my tach was working fine then my dizzy want out so I got a new obd-1 dizzy
Now when I start my car the tach will jump at 1st then just go back to 0 rpms

CO671

iTrader: (1)

Probably shorted something with that last distributor malfunction.
IIRC, there's a blue signal wire from the distributor for the tach.



Here are the rest of the OBD1 Distributor pdfs (post by HONDAPARTSMANMIKE)
https://honda-tech.com/forums/acura-integra-6/obd1-distributor-wiring-diagram-2473173/

HondaPartsHero

The 99-00 doesn't have the tach wiring at the distributor, you'll have to manually add it from the drivers side tach signal wire.



This wire


To here (single blue wire)

boostedb16a

So I just need to run the blue wire from the dizzy to the back of the Gage cluster
Because it goes to Nothing

boostedb16a

Yeah that's weird because before the distributor went out it works fine
But now with the new distributor it doesn't work

CO671

iTrader: (1)

@HondaPartsHero,
he claims to have a GSR motor swap, and that the tach was working prior to the busted dizzy. Hmmm

boostedb16a

So I can run the blue wire from the distributor to the single wire on the driver side engine harness in the picture

boostedb16a

Yea the tach was working but about 300 rpm off from the s300 reading on the Laptop
Then put a new Distributor on and now it doesn't work

And the only wiring I had to do was on the 99 Civic harness was the small single Distributor plug That will plug right into a OBD-1 big plug and you have to take one wire off and hook it to the Second two wire plug off the distributor so that. Leaves the blue wire from the two wire plug on the distributor going to nothing

boostedb16a

Yeah something fishy is going on because I hooked my laptop up real quick and it's reading rpm in the laptop but just not at the tach

boostedb16a

Well thank you all for your time I ran the blue wire from the distributor to the single blue wire on the driver side strut and now the tach works

theEGGmonsta

^ hey man sorry to bring this back from the dead didnt want to make a new thread...
i have a p28 with s300 it was turbod before but now its just back to a normal gsr map but ive also replaced my dizzy it went from a td87u to a td84u on a 00 gsr integra, except this time my tach doesnt work... was wondering if i could run 2 splices and a wire across with 2 connectors?

both of these are obd2 dizzys i dont understand why my tach would stop working all of a sudden

the ecu is from hondata so it has the obd2b jumper also integrated