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I was intalling some aftermarket oil gauges(pressure and temp) and I am using a spacer between the oil and cooler(2002 SVT) I had installed everything but the oil filter and went to get some dinner. My liitle brother ( Love him to death but wanna kill him sometimes) started the car. I heard it and ran out and shut it off right away. It ran maybe 4 seconds 5 seconds. Clean up the huge mess and throw the filter on it and fill her up with some mobil 1 and my aftermarket guage reads around 65 pounds of pressure but it jumps around and when I hit the throttle it dips a bit before the pressure rises. But the factory gauge reads zero oil pressure. But there is no idiot light for no oil pressure lit up?? What do you guys think I should do?? Trust the new gauge and drive it to work tomorow?? hitch a ride and look it over tomorow?? Its to dark but I dont see a ton of oil in the valve cover. I took the filter back off and its full of oil so oil is moving through the engine. No noises whatsoever. No leaks at all. I cleaned up the mess and there are no leaks. So I should have oil pressure right?? why did the factory gauge suddenly die when it ran with no filter?? Anyone know where the stock sender is??
 

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If you have no oil pressure the ECU will not let the car run... its a built in safety system.
 

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Discussion Starter #3
So why did it stay running when the filter was off?? I know for a fact there was no oil pressure then.
 

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the stock sender is right above the oil filter. So maybe all the oil shooting everywhere caused the sender/switch to fail? I dont know its just a guess. I installed Autometer Cobalt gauges in my SVT and when I start it, it jumps around like when I press the gas pedal while its cold the pressure drops then goes right back to where it was. Except when mines cold Im at about 80psi. If the aftermarket gauge is reading pressure (thats responsive to your driving/engine speed) I would trust it. As for the stock gauge being out if it got shorted out I would think it would still be throwing a code...
 
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