Touareg: 2004 V8
Join Date: Oct 2015
Second Vehicle: Still looking
Thanked 1 Time in 1 Post
Fuel Pump on a '04 V8
I'll try to keep this short. I've done a lot of searching and testing and I think I've got things roughly figured out but wanted to verify.
2004 Touareg V8
Starts, runs for 30-40 seconds and then dies. Pump behind the DRIVERS seat runs to prime and for 30 ish seconds after car starts, after it shuts down, the car dies shortly thereafter. 183k and pumps have never been touched. Opened up access and ran tests pulling plugs on the access holes (on the fuel tank under the rear seat) and alternately the 404 relays...the pump behind the passenger seat on the RIGHT side will not run from our tests. So I feel I determined I need a right side pump.
My question is this: if I pull the C20 404 relay, it will keep the left side pump running and the car will run fine indefinitely. (I know some cars that relay is in position C19, but on mine it's C20. Position A6 appears to control the left hand pump that is behind the drivers seat and C20 either directly controls the right hand pump behind the pax seat or it controls the switching between pumps). I of course have checked fuses.
While I get a new pump ordered and find time to replace, is there any reason I can't drive with just that one pump?
Any other thoughts you have, please let me know.