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Gq oil pres light on but mechanical guage readout fine

Posted: Sun Mar 14, 2010 8:19 pm
by twocartonsnachilliburger
on my tb42 i have a mechanical oil pressure guage hooked up and also the std oil pressure light, when car is started and oil rises light breifly disapears but before long returns gradually but mechanical guage still reads 20psi on idle and anywhere from 30 - 55 psi which i would think to be correct, at current oil change is needed shortly but would light still come on even if after market guage is reading such a read out, can any one plz send me in the right direction as to why light would be coming on thank you

Posted: Sun Mar 14, 2010 8:38 pm
by RIZZO
the original electronic pressure sensor that you would have bolted up to adapter or t piece would have to be stuffed in this case id say, gauges are pretty acurate,, the oil pressure you say your gauge is readin is spot on,

Posted: Mon Mar 15, 2010 10:13 am
by macneil
oil could be low... but the std oil pressure guage is absolutely useless both my gq's have had this problem... just go off your mechanical guage check the dip stick...

Posted: Mon Mar 15, 2010 11:03 pm
by the ferret
Sensor is rewted.