Oil Pressure Monitoring System Failure
12-12-2020, 06:15 PM
#1
Rennlist Member
Thread Starter
Oil Pressure Monitoring System Failure
Hey all,
Tried searching but cannot find anyone else that has navigated this issue on a 958 Cayenne Turbo (or other V8) yet.
My Oil Pressure Monitoring System light has turned on (intermittently) in my 13 CTT. I'll start off by saying the car runs PERFECT. Absolutely no problems mechanically, I believe it's the sending unit or a connection issue, hoping someone can help me navigate through diagnosis if they've been through this already. This problem only started after I changed the coils & plugs, so maybe I moved or hit one of the wires for the sending unit while doing that maintenance?
In cold starts, the light is off and stays off until I stop the car, and turn it back on (as in stopping for gas, shopping, running errands, etc). It seems to only be on after the car has warmed up, and it will stay on until it has a chance for the car to cool off overnight. I live in Austin so we're still getting 80+ degree days here and sometimes on warmer days, the light will be on even after letting it sit overnight.
I've already bought a replacement sensor ($200), but it doesn't seem to be an easy location to access for replacement and I just did the oil change a month or two ago... anyone out there able to help?!
TIA,
Shane
Tried searching but cannot find anyone else that has navigated this issue on a 958 Cayenne Turbo (or other V8) yet.
My Oil Pressure Monitoring System light has turned on (intermittently) in my 13 CTT. I'll start off by saying the car runs PERFECT. Absolutely no problems mechanically, I believe it's the sending unit or a connection issue, hoping someone can help me navigate through diagnosis if they've been through this already. This problem only started after I changed the coils & plugs, so maybe I moved or hit one of the wires for the sending unit while doing that maintenance?
In cold starts, the light is off and stays off until I stop the car, and turn it back on (as in stopping for gas, shopping, running errands, etc). It seems to only be on after the car has warmed up, and it will stay on until it has a chance for the car to cool off overnight. I live in Austin so we're still getting 80+ degree days here and sometimes on warmer days, the light will be on even after letting it sit overnight.
I've already bought a replacement sensor ($200), but it doesn't seem to be an easy location to access for replacement and I just did the oil change a month or two ago... anyone out there able to help?!
TIA,
Shane
12-16-2020, 05:51 PM
#2
Rennlist Member
Thread Starter
Update: When using my icarsoft, I can reset the oil pressure sending unit and it turns off the notification & shows me the oil pressure immediately, telling me that it is not the unit itself, but a coding issue. I saw in other threads (955/957) that they were seeing this exact problem, but were able to fix it by pulling the Gateway Control Unit's #40 fuse out and reinstalling it. This would reset the whole gateway and they never had an issue afterward.
So, can someone tell me which fuse is for our Gateway Control Unit (or other wording for this electrical unit)? The fuse box diagrams for 958 Turbo don't mention this specific fuse anywhere.
So, can someone tell me which fuse is for our Gateway Control Unit (or other wording for this electrical unit)? The fuse box diagrams for 958 Turbo don't mention this specific fuse anywhere.
01-19-2023, 02:32 PM
#3
1st Gear
Join Date: Jan 2023
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Update: When using my icarsoft, I can reset the oil pressure sending unit and it turns off the notification & shows me the oil pressure immediately, telling me that it is not the unit itself, but a coding issue. I saw in other threads (955/957) that they were seeing this exact problem, but were able to fix it by pulling the Gateway Control Unit's #40 fuse out and reinstalling it. This would reset the whole gateway and they never had an issue afterward.
So, can someone tell me which fuse is for our Gateway Control Unit (or other wording for this electrical unit)? The fuse box diagrams for 958 Turbo don't mention this specific fuse anywhere.
So, can someone tell me which fuse is for our Gateway Control Unit (or other wording for this electrical unit)? The fuse box diagrams for 958 Turbo don't mention this specific fuse anywhere.
07-06-2023, 09:04 PM
#7
I don't know where the fuse is but if you pull the battery overnight and leave the ignition in "on" it should effectively drain the entire car of charge (effectively pulling that fuse)....but you'll prob lose your radio presets, etc etc...