dkcaims

Does someone have a list of the ground strap locations on 90 C4 ?
Also... the grounds going to pin 30 on the DME plug, does anyone know where they terminate (the actual ground location) ?
Pertinent ground locations in the engine bay?

Thanks !

Romeo Norris

+1 If anyone knows, i could also use this information for the same make/model year - having likely DME issues with replacement on the way and want to make sure everything around it is also good when I do the swap.

Rocket Rob

There are two main ground straps. One at the battery and the other between the starter and the bottom of the car.

As for the grounds to the body in the engine bay, there is a ground for the AC compressor at the compressor. There is also a ground block in the relay panel in the engine compartment.

dkcaims

Look what I found... I knew I had this on my computer somewhere
I wish it was more detailed, but it's a start.

dfinnegan

Here's the chart

ras62

The ground strap from the battery to earth are notorious for failing, I have just replaced mine due to inconsistent readings.

Romeo Norris

Thank you - you guys rock! Been a lurking hen in the rooster house here for a long time and have learned a lot from you kind gents