Oil pressure warning at 2800 rpm, 1988 90Q

[Tom Love]

Wires crossed? Happened to me once.
----- Original Message ----- 
From: "Radek" <radek at istar.ca>
To: <quattro at audifans.com>
Sent: Monday, October 12, 2009 6:39 PM
Subject: Re: Oil pressure warning at 2800 rpm, 1988 90Q


> Thank you guys, you know your stuff.  Fixed the wires with new connectors 
> and have no more oil pressure warning!
>
> However, as soon as the car starts, the oil gauge gets pegged at the max. 
> Any suggestions?
> Thanks.
>
> Radek.
> 88 90Q
>
>
>
> radek at istar.ca wrote:
>> Hi everyone;
>>
>> After changing the clutch (and a few other things) on the 90Q, I took
>> the car on the road for a test drive.  It gives me a loud beep and a
>> flashing oil pressure symbol every time I exceed 2800 rpm or so.  The
>> light stays on as long as I keep it above 2800, disappears only if the
>> engine slows down.
>>
>> My understanding is that there is a low and a high pressure sensor on
>> the car, but looking at the engine block I only see one, brown.  Is
>> the pressure sender (the big barrel) acting as the high pressure
>> sensor?  It's disconnected right now, actually the terminals broke off
>> due to rust, awaits fixing.
>>
>> I would greatly appreciate some sort of reassurance that it's the
>> sensor, rather than actual low oil pressure!
>> Thanks!
>>
>> Radek
>> 88 90Q
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