Classic Audi Technical Mech/Tech Engine » Oil pressure warning '93 V6 Cabriolet

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Old 12-07-18, 02:49 PM   #1
Flying Frank
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Default Oil pressure warning '93 V6 Cabriolet

Ok guys back for some advice/help. Please.

Have been very quiet for a while but still struggling on with the occasional dally in to the Audi marque.

An ongoing problem with my ABC engined Cabriolet is the oil pressure warning coming on when the RPM goes past 2100revs. Oil pressure gauge still reads just under 5 bar , so have been living with it, more especially as it doesn't always do it. Long journey recently to get a new back windscreen fitted ( 85 miles ) the warning was there all the time with revs over 2150, but return journey, not a peep out of it.

Tried changing the oil pressure sender, ( yes i did change the correct one! ) and no difference

I had this problem way back on an 80 Sport and had to change the mini check computer on the back of the dash. Does this model car use the same principal ? I think Mikes2 came up with the answer last time, and Shaun5 supplied me with the part....so any suggestions, help appreciated.

Incidentally, superb Cabrio in panther black metallic with nice hood and .....a hard top!

Last edited by Flying Frank; 12-07-18 at 02:52 PM.
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Old 12-07-18, 07:08 PM   #2
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What warning system does the car have ?

Mini check or autocheck ?
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Old 12-07-18, 07:40 PM   #3
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Hi Mike, definitely not auto check , but a small extra square shaped box above the warning lights with , on my car, 3 lamps that illuminate when ignition is switched on , brakes, coolant temperature and oil pressure. Is that a mini check or just a standard dash for an Audi 80 ? Other warning lights below.
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Old 12-07-18, 07:52 PM   #4
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Mini check.

Looks like this (ignore the engine mgmt)



I'll see if I have a wiring diagram for it
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Old 12-07-18, 08:11 PM   #5
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Yes thats the one....does it have a unit on the back of the dash like the 80 Sport had or is it just going to be a wiring issue/rear dash printed circuit problem ?
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Old 12-07-18, 09:17 PM   #6
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This is for an Audi 80 but everything should be the same.

http://s2-audi.co.uk/workshop/80_abc/80abc.htm

It will just be a minicheck module.

Your oil pressure sender is 2.5 bar and has a grey/ white wire. It goes via a couple of connectors to pin 4 of T14 (white connector) on the rear of the instruments.

T4/h is in the engine bay on the right side (driver) - I'd check there first
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Old 12-07-18, 09:23 PM   #7
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Many thanks Mike, i'll give it a check over as soon as I get a chance.
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