Weird oil pressure problem??

Post by **z3290dett** » Mon May 10, 2010 5:11 pm

i just noticed my oil pressure gauge goes to 0 when the car has warmed up, but its perfect when the car is cold... anyone know what could cause this?

Post by **es.biggs** » Mon May 10, 2010 6:37 pm

get a new oil pressure sending unit. It's easy to install with the oil filter off. I would NOT run my car with the oil pressure gauge reading 0.

Post by **z3290dett** » Mon May 10, 2010 6:44 pm

es.biggs wrote:get a new oil pressure sending unit. It's easy to install with the oil filter off. I would NOT run my car with the oil pressure gauge reading 0.

thanks man. i'll try an oil change first i just noticed oil smells like gas from flooding before.

Post by **evildky** » Mon May 10, 2010 10:01 pm

you can hook up a mechanical uage to verify the reading, if you still have low oil pressure it's either a clogged pickup form a denten pan (common in pallet motors) or worn rings and bearings

Post by **NORCAL300ZX916** » Tue May 11, 2010 4:31 pm

lol i went through like 4 sending units. the original from both my motors a wrecking yard one and a new one none of them work lol but oddly the oil pressure came on when i had a loaner ecu in while mine was getting remapped, but went off after about 5 mins i just gave up too ha im just happy having speedo and tach cuz after my jdm swap i had nothing. it was probably pre-existing since i bought it with a blown motor.

Post by **z3290dett** » Tue May 11, 2010 5:54 pm

evildky wrote:you can hook up a mechanical uage to verify the reading, if you still have low oil pressure it's either a clogged pickup form a denten pan (common in pallet motors) or worn rings and bearings

i did a compression test on it and got 150psi average on cold engine, so i dont think its the rings, i'll check to see if there are dents in the pan, its a non swap engine from what i know so..

Post by **z3290dett** » Tue May 11, 2010 5:56 pm

NORCAL300ZX916 wrote:lol i went through like 4 sending units. the original from both my motors a wrecking yard one and a new one none of them work lol but oddly the oil pressure came on when i had a loaner ecu in while mine was getting remapped, but went off after about 5 mins i just gave up too ha im just happy having speedo and tach cuz after my jdm swap i had nothing. it was probably pre-existing since i bought it with a blown motor.

4 sending units!! LOL

Post by **NORCAL300ZX916** » Tue May 11, 2010 5:58 pm

yea i figured they couldnt all be bad especially the new one so i just gave up!

Post by **z3290dett** » Tue May 11, 2010 6:17 pm

oh yea and it idles high to. it idles at 1,500rpms

Post by **evildky** » Wed May 12, 2010 12:05 pm

z3290dett wrote:oh yea and it idles high to. it idles at 1,500rpms

probably the air regulator

Post by **NORCAL300ZX916** » Thu May 13, 2010 10:59 am

might need to clean the throttle body

Weird oil pressure problem??

Weird oil pressure problem??

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