Luke1996ta

iTrader: (3)

Well got my car run after cam swap and heads by now most of u know my setup well I only have about 16 lbs at idle and when I'm on the gas I have 5 or I had to replace my sending unit cause I broke the one on it I read other treads and they said it did it to there car also but y or what would make me loose oil pressure when I'm on the gas Bad sending unit or what

RamAir95TA

iTrader: (2)

When your gauge is reading low the first thing to do is get a manual gauge to verify whether or not it's accurate.

Luke1996ta

iTrader: (3)

Well the car almost stalls it that just cause it's telling the computer to do so

RamAir95TA

iTrader: (2)

The PCM has no idea what the oil pressure is since the sending unit is not driven by the PCM. It is a stand-alone sensor that doesn't have anything to do with how the engine runs.

Did you have the engine tuned?

wrd1972

iTrader: (12)

96TransAmboosted

iTrader: (8)

Did you look at the cam bearings when you installed the cam? Did you use camshaft lube on the entire camshaft? Seems to me you need to do proper diag with a gauge like someone has already suggested. If you do have that low of pressure on start up you might not want to rev it up or let it run very long till you figure out why. I have 2 great lt1 engines with great oil pressure if you end up looking for one.

Luke1996ta

iTrader: (3)

Yes i did have it tuned

Luke1996ta

iTrader: (3)

Yes i did have it tuned

Luke1996ta

iTrader: (3)

Ya I used the lube and the cam bearings looked good still

RJBAILEY84

iTrader: (4)

I had some what same problem during my cam swap. Start up ran 40psi then once warm running temp it dropped to 15 or so. I did the mannual gauge and it read 35-40psi all the time. Trouble shoot your gauge first like stated.. A gauge can be picked up for 20 bucks for testing purpose. Good luck man.

Note my engine was stock with bolt ons and 143,000 miles..lol

Luke1996ta

iTrader: (3)

Now would u unplug the oil sending unit

RamAir95TA

iTrader: (2)

What good will that do?

bigj2717

iTrader: (15)

Just do what everybody is tell you to do. Go by a mechanical gauge and hook it up and see what is reads then go from there

96TransAmboosted

iTrader: (8)

Hook the gauge up above your oil filter

Luke1996ta

iTrader: (3)

What would make the motor about to stall them when the cg light comes on

RamAir95TA

iTrader: (2)

The check gauges light is coming on BECAUSE the motor is about to stall, not the other way around.

boostedlt1

iTrader: (2)

your check gauges light is coming on because you dont have any oil pressure!! and if you don't have any oil pressure the resistance from metal on metal of all your internal parts is whats making it want to stall

honestly... you've probably already done a lot of damage if you're reving it up without oil pressure. check and see how metallic your oil is

Luke1996ta

iTrader: (3)

The car always had good oil pressure before I had to change the sending unit

93 LT1 Vette

Back off the rocker arms a little, sounds like you got one or more to snug on the verge of hanging a valve open.

Luke1996ta

iTrader: (3)

How or y would that effect oil pressure tho