Hey all,

My stock Hella intercooler pump bit the dust so I'm replacing it with the Bosch 0392022010. So far so good, but I'm having a hard time determining the positive and negative wires that were connected to the old pump. Does anyone know which one is which? (see pic) One is black/red and the other is yellow/black.

Fastest way would be to hook up a multimeter and turn ignition to run. If multimeter shows +12V then you know which is positive.

If it shows -12V then swap and Mark the positive wire.

I just installed this

let me check my pics

I believe I used this as a guide

https://www.jaguarforums.com/forum/x...mp-work-91611/