LT1-LT4 Modifications 1993-97 Gen II Small Block V8

oil pressure gauge pined out

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Old 06-21-2009, 12:32 PM
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Exclamation oil pressure gauge pined out

dumb question i know but this means the pressure sensor is bad or can i have put it on the wrong way... help with noob question oh yea 93 camaro
Old 06-21-2009, 12:50 PM
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Most likely the sensor is grounding out. Check the wiring first before you declare the sensor itself the culprit.

Out of curiosity, have you done any work in the engine bay lately (headers, etc.)? Breaking the sensor is a common problem as it is very weak because of its mounting orientation. Yours is located just above the oil filter on the block.
Old 06-21-2009, 01:00 PM
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yea i did a lt swap but took the sensor out so i would not break it.. but it pings out before i even turn on the car.guess i jump back under and see what the problem is
Old 06-21-2009, 01:11 PM
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Sounds like the sensor is toast, thats the same thing mine did when it died. Just goes to max it can in the housing on the gauge.
Old 06-21-2009, 02:33 PM
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yep thats what it did!! so im going to hook to the obd 1 and see the real oil pressure so i can get the car right.. idles fine and everything.. sounds like a beast with straight Lt with no exhaust..woke the neighbors up ha ha
Old 06-21-2009, 02:37 PM
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so how much hp you think i have (just a guess) with lpp lt, 52mm tb, ported intake, 1.6rr with comp springs that have a max 650lift, full exhaust, cai, 3 angle value job on heads and mail order tune (thats right the first time) need just a guess
Old 06-21-2009, 03:30 PM
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If the circuit to the sensor is open or the connector not on, the gauge will peg. It does not peg if the wire is grounded.
Old 06-21-2009, 03:44 PM
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so im going to hook to the obd 1 and see the real oil pressure
The sensor is only connected to the guage. the computer does not keep track of oil pressure.
Old 06-21-2009, 03:47 PM
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when my sensor was broken by a tranny shop in the fall of 07 it showed ZERO oil pressure. unplugging it shows pegged though so i would guess your electrical connection got disconnected somehow.

the new sensor they put in sometimes will throw a check gauges light when the car is running warm, like yesterday in traffic during a cruise i was at around 230 deg when the fans kicked on and the oil pressure dropped just above the red where the CG light came on.
Old 06-21-2009, 05:16 PM
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thanks for the help will go check that right now .. almost just bought a pressure sensor just now at autozone
Old 06-21-2009, 05:23 PM
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Originally Posted by old93camaro
thanks for the help will go check that right now .. almost just bought a pressure sensor just now at autozone
Don't buy them from Autozone. I just got one. It's a duralast (great ).. Biggest piece of **** ever. Even looks funny lol
Old 06-22-2009, 05:27 AM
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so 1badzee im guessing it did not work lol... sorry to hear that man
Old 06-22-2009, 06:33 AM
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When we did a long tube swap, we forgot to plug that sensor back in and it showed maxed on the gauge. When my sensor went out, it would flutter and read zero or read normal, just kind of all over the place. I bet you either didn't plug it in all the way or the wire broke. The one on my 93 was pretty ragged looking. A tip is to make a slit in the side of the rubber cover, this helps making getting that sensor on easier, small slit down the side is all it takes so you can spread that rubber over open and plug the sensor in. OTher wise, kind of a pain.
Old 06-22-2009, 09:27 AM
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tiring to fix the problem right now will post when im done
Old 06-22-2009, 02:16 PM
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just finish the car, yea the oil sensor was not plug in at all and had to re adjust the comp rr now it idles fine now. i have to take it to the muffler shop because the y-pipe does not freaking line up.. other than that took it around the block and it pulls 50% better than last time



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