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Oil pressure sensor.

Posted: Fri Jun 15, 2018 10:21 pm
by gsxr2mil
I have a 150psi oil pressure sensor and when the bike is running at idle itll read fine and when I rev it up itll drop oil pressure at least that's what the sensor is telling the ecu, it was at 76psi at idle almost and then around 9 psi at 8k rpm so I'm thinking the sensor is faulty. Anyone ever had this problem

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 2:16 am
by Rob Stevens
sounds like you have the sensor scaling in the software wrong, you need to calibrate the readings from an air line or something else like.

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 5:43 am
by Alex DTA
What type of sensor is it? VDO style or pressure transducer?

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 7:08 am
by gsxr2mil
It's a pressure transducer sensor.

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 2:28 pm
by stevieturbo
It'll be a Chinese jobbie. An equivalent good sensor would be 0.5v to 4.5v to cover the quoted pressure range.

But rather than guessing, get the supplier to give you a spec sheet, or failing that you'll need to DIY calibrate.

They should be a linear output so relatively easy to calibrate.

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 4:01 pm
by gsxr2mil
I went into the ecu and just cut the switch in when the bike was off and it read 1235v and 27psi of oil pressure I know that couldn't be right.then when I started it the oil pressure drops

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 5:08 pm
by stevieturbo
you cut the switch in ???? no clue what that means

And it would be impossible for a 5v sensor to read 1235 volts.. like over 1,000 volts ?

It needs calibrated...and maybe wired correctly.

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 5:10 pm
by stevieturbo

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 5:11 pm
by gsxr2mil
Cut the switch on I mean sorry, and its wired correctly, I believe my sensor is going bad it's a cheap one anyway

Re: Oil pressure sensor.

Posted: Sat Jun 16, 2018 5:15 pm
by gsxr2mil
Ok just read it, but in order to scale it correctly dont I need to put an oil pressure gauge on it to see where the oil pressure is at that given voltage for the oil pressure sensor?