EG SI, OBD1 or OBD2

[Henessaayyy]

Few questions regarding wiring.

Wondering if B18C2 engine loom connectors join up with the EG SI connectors on the Strut Towers?

And also, at the ECU, do all the wires match? Say... Red/yellow from EG SI loom to Red/yellow from B18C2 loom? Is it simply chop the wires at the connectors then rewire according to colour?

Cheers.

[bennjamin]

the EG5 Si is OBD1.

Just for future reference .....


all 91-95 hondas are OBD1.
After are OBD2a or OBD2b

[Henessaayyy]

Thanks Ben,
So as for wiring up a B18C2 to a Civic, IF the B18C2 is out of a Integra, Pre-95, then the loom connectors at the strut towers will join without a problem and each wire will do its job correctly?

But... If its a B18C2 from a 96+ Integra, what would I have to do with the wiring?

[ECU-MAN]

OBDII B18C engine will still connect to the Si tower connectors, you will need to run a wire fo the IAB,

[Henessaayyy]

That's eased alot of thoughts from my mind.
And the IAB is something to do with the intake manifold? What is it exactly?

Cheers.

[VTec1987]

That's eased alot of thoughts from my mind.
And the IAB is something to do with the intake manifold? What is it exactly?

Cheers.

activate secondary butterflies

odb1 trigger with GND
obd2 trigger with 12v

or its other way around, search and u can find out.