cthan3o3

i just wanna know what parts i need to convert an obd2 gsr motor into obd1. anything like alternator, injectors, etc? and which engine harness will i need to use? the d16z6 one or the obd2 b18c1?

Luserkid

How good are you at rewiring? You could rewire your whole harness into obd2 from OBD1. But i wouldnt even do that to much work.

Simple way out:

Alternator - Get an obd1 B series
Wiring harness - any obd1 wiring harness
Dist. - OBD1 B series VTEC
Injectors - obd1 or rewire your obd2 injector clips to your obd1 harness (easy)

Congrates now your obd1.

cthan3o3

cool thanks a lot! if i got an obd1 p72 is it just plug and play or would i have to rewire it for something else like knock sensor, iab, etc?

Luserkid

I dont know, what trim and year is your car? You might not have to wire all that stuff in if you have the correct trim.

cthan3o3

i have a 95 civic ex, the engine is a 99 gsr motor.

jetpilot

If you have the 99gsr wiring harness just use the alternator plug and distributor plugs on your civic harness and it should work fine

Also use your stock civic injectors

Luserkid

All youll need to wire up the knock sensor and thats a wire straight to C3

Reid

Just use the OBD2 GSR engine harness and an OBD1 ECU.

Everything will work fine.

The above suggestions are far more costly.

cthan3o3

so the obd2 gsr harness should plug into everything ok in my 95 civic?

deez92

yes

jetpilot

the Obd2 harness on integras and some civics have the shock tower plugs (I think ALL tegs have this but not ALL civics)

The plugs are all the same either OBD1 or OBD2

then chip your ecu and add a b18c map (copy and paste in crome)

94GSRCivic

I know somebody that had the same setup and his worked after adding his vtec wires into his ECU. It MIGHT work, but dont quote me.

Reid

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94GSRCivic &raquo;</TD></TR><TR><TD CLASS="quote">I know somebody that had the same setup and his worked after adding his vtec wires into his ECU. It MIGHT work, but dont quote me.</TD></TR></TABLE>

A car that had a D16Z6 is obviously wired for VTEC.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jetpilot &raquo;</TD></TR><TR><TD CLASS="quote">the Obd2 harness on integras and some civics have the shock tower plugs (I think ALL tegs have this but not ALL civics)

The plugs are all the same either OBD1 or OBD2

then chip your ecu and add a b18c map (copy and paste in crome)</TD></TR></TABLE>

If you knew this before, why did you suggest hacking up two perfectly good engine harnesses?

jetpilot

I forgot I guess, sorry about that