oil pressure switch? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

glenn gtr · 7th July 2008, 12:25 PM

Hi i have an r33 gtst with the oil pressure at 5 to six in a morning cold and 2 when warm is this ok. also recently when i drive the car when warm the oil pressure is at 2 then drops to just above 0 and doesnt rise at all, but if i stop the car turn it off then straight back on it goes back to 2 and a half and okay for rest of the time wots going on?

glenn gtr · 7th July 2008, 06:25 PM

Anybody any ideas.

Redlineash · 7th July 2008, 06:52 PM

Glenn,

My R34 GTT has a similar issue. Recently was off the road for a couple of weeks, and suddenly my oil pressure readings are loads lower than they used to be.

4-5 bar at cold, 2-4 when driving around (light throttle to full open), but then when hot can drop to 1 bar.

Ive just got a new oil pressure sender unit from Abbey and should be fitting this wkend - will let you know what happens.

Ash

Light-R · 8th July 2008, 12:11 AM

i had that problem.

except that my stock reading was ok.

found out that the greddy gauge oil pressure sensor plug was dirty. crc'd it and it is fine now

Redlineash · 3rd August 2008, 11:26 AM

Ok guys quick update.

Fitted the new sender unit and it seems to be working fine, pressure now reads three bar driving gently and between 4 and 5 when pressing on.
only drops to just over 2 when under 2000 revs.

Only bastard thing is that now it looks like my starter motor has packed up....

Stachi · 3rd August 2008, 11:32 AM

Do you still have the part number of the unit and what did you pay for it? Just out of interest...

Marc

Redlineash · 3rd August 2008, 11:53 AM

I use Abbey to do my servicing etc so just phoned them and they sent me one next day. If i recall it was around £90 delivered give or take a few quid.

part number from FAST is 25070-30P01 for mine but then mine is an RB25 DET NEO from the R34 GTT not a GTR.
I suspect however that they are identical.
Which model is it for and which engine type - Ill look up the number?

Stachi · 3rd August 2008, 12:21 PM

I'm having trouble with my FAST installation, have to redo it but can't find a reliable source atm..

It is for a R33 GTR. Your help is much appreciated!

Marc

Redlineash · 3rd August 2008, 12:22 PM

No worries mate - two mins and ill post it up for you

Redlineash · 3rd August 2008, 12:26 PM

Its coming up with the same part number as for my R34GTT above.

Hope that helps

Stachi · 3rd August 2008, 12:45 PM

Thanks for that, searched for a part number for nearly an hour now, maybe I used the wrong keywords, almost drove me mad

Cheers

Marc

Redlineash · 3rd August 2008, 12:46 PM

No worries - if you need any other pert numbers while FAST aint workin for you just PM me.

Glad I could help

Ash

7th July 2008, 12:25 PM	#1 (permalink)
glenn gtr GTR Register Member Join Date: Mar 2007 Posts: 133	oil pressure switch? Hi i have an r33 gtst with the oil pressure at 5 to six in a morning cold and 2 when warm is this ok. also recently when i drive the car when warm the oil pressure is at 2 then drops to just above 0 and doesnt rise at all, but if i stop the car turn it off then straight back on it goes back to 2 and a half and okay for rest of the time wots going on?

7th July 2008, 06:52 PM	#3 (permalink)
Redlineash GTR Register Member Join Date: Jul 2007 Location: Jason Perry Street Posts: 162	Oil pressure Glenn, My R34 GTT has a similar issue. Recently was off the road for a couple of weeks, and suddenly my oil pressure readings are loads lower than they used to be. 4-5 bar at cold, 2-4 when driving around (light throttle to full open), but then when hot can drop to 1 bar. Ive just got a new oil pressure sender unit from Abbey and should be fitting this wkend - will let you know what happens. Ash

3rd August 2008, 11:26 AM	#5 (permalink)
Redlineash GTR Register Member Join Date: Jul 2007 Location: Jason Perry Street Posts: 162	UPDATE Ok guys quick update. Fitted the new sender unit and it seems to be working fine, pressure now reads three bar driving gently and between 4 and 5 when pressing on. only drops to just over 2 when under 2000 revs. Only bastard thing is that now it looks like my starter motor has packed up....

3rd August 2008, 11:53 AM	#7 (permalink)
Redlineash GTR Register Member Join Date: Jul 2007 Location: Jason Perry Street Posts: 162	Oil Pressure Sender I use Abbey to do my servicing etc so just phoned them and they sent me one next day. If i recall it was around £90 delivered give or take a few quid. part number from FAST is 25070-30P01 for mine but then mine is an RB25 DET NEO from the R34 GTT not a GTR. I suspect however that they are identical. Which model is it for and which engine type - Ill look up the number?

3rd August 2008, 12:22 PM	#9 (permalink)
Redlineash GTR Register Member Join Date: Jul 2007 Location: Jason Perry Street Posts: 162	R33 GTR No worries mate - two mins and ill post it up for you

7th July 2008, 06:25 PM	#2 (permalink)
glenn gtr GTR Register Member Join Date: Mar 2007 Posts: 133	Anybody any ideas.

8th July 2008, 12:11 AM	#4 (permalink)
Light-R GTR Register Member Join Date: Apr 2007 Location: lisbon Posts: 652	i had that problem. except that my stock reading was ok. found out that the greddy gauge oil pressure sensor plug was dirty. crc'd it and it is fine now

3rd August 2008, 11:32 AM	#6 (permalink)
Stachi GTROC Member Join Date: Jan 2008 Location: Near Stuttgart, Germany Posts: 827	Do you still have the part number of the unit and what did you pay for it? Just out of interest... Marc

3rd August 2008, 12:21 PM	#8 (permalink)
Stachi GTROC Member Join Date: Jan 2008 Location: Near Stuttgart, Germany Posts: 827	I'm having trouble with my FAST installation, have to redo it but can't find a reliable source atm.. It is for a R33 GTR. Your help is much appreciated! Marc

3rd August 2008, 12:26 PM	#10 (permalink)
Redlineash GTR Register Member Join Date: Jul 2007 Location: Jason Perry Street Posts: 162	Oil pressure sender Its coming up with the same part number as for my R34GTT above. Hope that helps

3rd August 2008, 12:45 PM	#11 (permalink)
Stachi GTROC Member Join Date: Jan 2008 Location: Near Stuttgart, Germany Posts: 827	Thanks for that, searched for a part number for nearly an hour now, maybe I used the wrong keywords, almost drove me mad Cheers Marc

3rd August 2008, 12:46 PM	#12 (permalink)
Redlineash GTR Register Member Join Date: Jul 2007 Location: Jason Perry Street Posts: 162	No worries - if you need any other pert numbers while FAST aint workin for you just PM me. Glad I could help Ash

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