splicing into conversion harness

[carayan]

this maybe be a dumb question, but i may as well ask (inb4 noob forum)

in using an ek4 obd2a harness, with an obd2a -> obd1 conversion harness, for wiring in something like IAB, can i skip wiring into the ecu plug and splice it into the given wire for the obd1 connectors?

so instead of plugging it into A26 on the ek4 loom, can i splice it directly into A17 of the obd1 harness towards the ecu? would it function in the same respect?

[anjin]

I have done similar things when the conversion harness wasn't quite right. Provided the path from the ecu pin to the sensor.control is right it really doesn't matter, unless you want to have it perfect.

[carayan]

I have done similar things when the conversion harness wasn't quite right. Provided the path from the ecu pin to the sensor.control is right it really doesn't matter, unless you want to have it perfect.

so ecu will still recognise the sensor? fantastic. might just do that and save the pain of fiddling with the plug for now.

[ECU-MAN]

you can wire into the conversion harness, just make sure you solder your wires and use heat shrink.

[carayan]

you can wire into the conversion harness, just make sure you solder your wires and use heat shrink.

yep fantastic thought so. what about for something that needs to be grounded? wire into a ground wire or just ground into chassis?

[ECU-MAN]

depends what that something is.

[carayan]

depends what that something is.

touche, its vtec pressure sensor (blue/blk?), as my loom very mysteriously doesn't have it.

[ECU-MAN]

use OBDI A23 or A24 to ground the VTP sensor