daytrader

Found the problem with code P1518. Fixed and now run like a dream!

Loose connector?

Loren, it is the throttle actuator/servo attached to the right of the throttle body (egas) was dirty. I took the unit off and clean the internal parts with electrical cleaner.

Found the problem with code P1518. Fixed and now run like a dream!

Hi all,

new owner of a Cayenne S model year 2004. Had a C2 01 before but "had" to switch to a car with more room..no regrets though!

I have a slight issue with the fuel pump sounding a bit too much.. When I exit the car with engine on I can clearly hear the "humming" of it through the engine sound. Both me and my wife thought the sound was a moped or something in the distance hehe..It sounds like a pump should and not like it is damaged or so I guess..t

I suspect it is the fuel pump since the exact same sound is heard for a couple of secs when I first open the drivers door in the morning. As I understand it the pump pre-loads the pressure to get the motor started more easily..

Anyone else but me that has this problem (if it is a problem) or am I just being too sensitive? Just had the car for 1 week so perhaps this is normal.

Cheers

/bertil

It's normal to hear electronic fuel pump sound. Beside, having a Porsche I do own Merc. and BMW and they all sound the same and noticeable.

had to look this up, throttle jacking new one on me

diag conditions:

driving with changing pedal positions

possible fault cause:

open circuit

short circuit to B+

affected terminals:

1/7 and 1/9

so with a break our box check voltage at the pins, if not repair wiring

Thanks for your reply! Where are the terminal & wiring located?

This morning I started up my 996 C2 idle was rough and engine died. Cranked up again, rough idle and engine died. CEL came on. I used ODBII reader and got code 1518 (Throttle Jacking Unit, Control Range - Below Limit). Please, explain this terminology and what's wrong with my throttle.

Thanks!