I need to disable the fuel pump to perform a compression test, I've searched high and low for the location of the fuel pump relay, and can't find it anywhere. If anyone knows another way to disable the pump, I'd be interested to hear that too.
How to disable fuel pump
- Thread starter drewstrob
- Start date
Vince Waldon
Top Post Dawg
I just lift the back seat and unplug it. Only way to be sure. 
SootHappens
Veteran Member
Maybe just jump the starter solenoid.
oilhammer
Certified Volkswagen Nut & Vendor
I just jump the crank wire at the starter. Easier anyway, since you are under the hood and it is right there.
Ol'Rattler
Top Post Dawg
About 3 PSI less than at sea level.
Here ya go: http://www.myturbodiesel.com/wiki/how-to-do-compression-test-on-vw-audi-tdi-engine-results/
Ol'Rattler
Top Post Dawg
I would add, don't turn the key on because the engine will try start even with the in tank pump disabled.