Stanley2187 Posted April 19, 2005 Report Posted April 19, 2005 1991Pontiac Grand Prix SE 3.1 LV6/AT-loaded accessories. I have a problem that this vehicle will not start. It will crank, with a new battery and I have changed plugs and wires. I get spark on wires, fuel pump sounds like it is working to prime system when key is on and after cranking, get fuel pressure to rail when release/check valve on fuel rail is pressed. Car will run with "starting fluid" sprayed in intake. Please Help!. Quote
Baddflash Posted April 19, 2005 Report Posted April 19, 2005 Well if it runs on SF then it's deffinately a fuel problem. Could be a number of reasons for that, could be fuel filter, pump, pressure regulator, injectors/harness. Probably more but it's hard to say. Quote
rudefyet Posted April 19, 2005 Report Posted April 19, 2005 he typed "3.1 LV6" he just put the space in the wrong place "3.1L V6" Quote
digitaloutsider Posted April 19, 2005 Report Posted April 19, 2005 OH.. rofl I thought it was an RPO code, but that comes up as a 1.8L I4 Quote
Baddflash Posted April 21, 2005 Report Posted April 21, 2005 oil pressure sensor? What would that have to do with anything? :? :?: Quote
Dan94Z34 Posted April 21, 2005 Report Posted April 21, 2005 the oil sensor can cause a no start, because if the sensor detects no oil pressure at cranking, then it will not allow the car to start. Quote
embalmer41 Posted April 21, 2005 Report Posted April 21, 2005 You are correct Dan. If the engine has a low oil pressure, the oil pressure sensor will shut down the fuel pump to save the engine. Pretty ingenious. Quote
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