Oil pressure sensor weirdness...

Post Reply
User avatar
32wildbilly
Never gonna run around and desert you
Posts: 5758
Joined: Sat Jan 06, 2018 2:46 pm
Location: Kneebraska

Oil pressure sensor weirdness...

Post by 32wildbilly » Wed Aug 04, 2021 11:49 am

2005 C4S. Replaced oil pressure sensor within the last 4-5 years due to the "HOLY CRAP!" syndrome(drop to zero, sound alert. go back to proper oil pressure, wash-repeat). Recently I have noticed that before I start the car for the first time in the day that the gauge goes up to 0.5 to 1 when the ignition is turned on. Ok Ok I know the drill, but wait there's more. If I turn the key back off without starting the engine then switch the ignition back on(not starting the engine) it stays at zero. In addition after driving the car shutting it off, go in to do some shopping and come back out switch on ignition it stays at zero! Seems like only first ignition on of the day causes this reaction. When I stop being lazy I'm going to try to get my hands on the wires as it sounds like a false feed from dirt/crud/corruption/moisture to me. Or maybe these things just have a short life span. BTW car is garaged.

Anybody have this syndrome or "try this" ideas?
Never gonna make you cry...

User avatar
gnat
Power-drunk moderator
Posts: 4171
Joined: Sat Jan 06, 2018 6:54 am
Location: Lobby, VWGofA HQ

Re: Oil pressure sensor weirdness...

Post by gnat » Wed Aug 04, 2021 1:01 pm

My money is on mice from the wheat fields or the ignition switch (probably too much wheat dust).

User avatar
32wildbilly
Never gonna run around and desert you
Posts: 5758
Joined: Sat Jan 06, 2018 2:46 pm
Location: Kneebraska

Re: Oil pressure sensor weirdness...

Post by 32wildbilly » Wed Aug 04, 2021 2:57 pm

source-2.gif
source-2.gif (407.91 KiB) Viewed 1649 times
gnat wrote: Wed Aug 04, 2021 1:01 pm My money is on mice from the wheat fields or the ignition switch (probably too much wheat dust).
Never gonna make you cry...

User avatar
FRUNKenstein
Curator Extraordinaire
Posts: 3938
Joined: Fri Jan 05, 2018 11:02 pm
Location: Wheat field, dammit, wheat!
Contact:

Re: Oil pressure sensor weirdness...

Post by FRUNKenstein » Sat Aug 07, 2021 10:19 am

gnat wrote: Wed Aug 04, 2021 1:01 pm My money is on mice from the wheat fields or the ignition switch (probably too much wheat dust).
That, or based on your ignition key turning sequence description, you may simply have too much damn time on your hands. :D

One drive in my 928 and your head would explode. It’s like a fucking disco in there with warning lights and needles doing weird stuff.
www.kansascityautomuseum.com
Current:
2002 996TT X50, Guards Red
1987 928S4, Guards Red
1987 951, Guards Red
1973 914 2.0 Bahia Red

2006 955S, Lapis Blue
Other toys:
1988 BMW 325i Cabriolet, Alpin Weiss
1987 Bertone X1/9, Verde Chiaro
Gone but not forgotten: 1975 914 2.0, Laguna Blue; 1999 996 C4 Aerokit Black; 1990 964 C2 Guards Red; 2006 955S Arctic Silver

User avatar
32wildbilly
Never gonna run around and desert you
Posts: 5758
Joined: Sat Jan 06, 2018 2:46 pm
Location: Kneebraska

Re: Oil pressure sensor weirdness...

Post by 32wildbilly » Sat Aug 07, 2021 11:45 am

Time? Yes I do have time!

...and
inside frunks 928.gif
inside frunks 928.gif (6.14 MiB) Viewed 1636 times
FRUNKenstein wrote: Sat Aug 07, 2021 10:19 am
That, or based on your ignition key turning sequence description, you may simply have too much damn time on your hands. :D

One drive in my 928 and your head would explode. It’s like a fucking disco in there with warning lights and needles doing weird stuff.
Never gonna make you cry...

Post Reply