MPGuino in CRX

[wyatta4]

Alright, so I couldn't find the information any where else.. I have a 1989 CRX HF and I can't figure out what injector to tap into and where the vss line is located.... Any help would be much appreciated.
Thanks

[Cd]

This might be helpful : crxMPG – Gas mileage never looked so good » SuperMID: Fuel Economy Display

[wyatta4]

No I've read that before. It doesn't tell me what wires to get in to.

[vt_eg]

this might help. OBD0 pinout diagram on honda-tech.
looks like B16

Obd0 Pin out - Honda-Tech

[wyatta4]

My B pinpoints are different than that... I have that photo..

[vt_eg]

does your ecu have 2 or 3 plugs? honda OBD0 pins should be standard across the board. is it possible the previous owner did a swap on the harness and ecu?

pics will help

[wyatta4]

3 plugs. Previous owner didn't have an ECU and he said that he didn't swap anything..
I'll post photos tonight..

[vt_eg]

if it's 3 plugs, it's a OBD1 ECU/harness. check the OBD1 diagram here

ECU Pinouts, VTEC wiring, & ECU VTEC Conversion Information - HondaCivicForum.com

if your B10 is yellow/blue or orange color wire, then that's the one for your VSS

while you're at it, you can also check the ECU number and see which one your CRX is running to verify that it's a OBD1
Honda ECU List - HondaSwap Forums

if you're engine isn't original, check the engine model stamped on the block. here's a list of honda motors to triple check your OBD1
Honda Engine List - HondaSwap Forums

[wyatta4]

Mine looks like that obd0 one. Not the obd1

[wyatta4]

Here's my ECU and wires..
Quick photos.. sorry for the lack of detail.