car cuts out at 4000 rpm

tsupra89 · 11-07-2007, 02:44 AM

i think that you need to def check fuel pressure more then spark what sounds to me like its flooding the cylinder. supras come with a stock fuel pressure regulator and yours might have gone bad and when you are gunning it as i would expect that the fuel pressure regulator is malfunctioning and its causing it to flood the cylinders. hook up a fuel gauge and see the fuel pressure and make shure its around what it should be. the rev it up to 4 grand and see if it increases. thats what i would check first.

11-07-2007, 02:44 AM	#3
tsupra89 3" Exhaust Join Date: Sep 2007 Location: asheville Posts: 71	i think that you need to def check fuel pressure more then spark what sounds to me like its flooding the cylinder. supras come with a stock fuel pressure regulator and yours might have gone bad and when you are gunning it as i would expect that the fuel pressure regulator is malfunctioning and its causing it to flood the cylinders. hook up a fuel gauge and see the fuel pressure and make shure its around what it should be. the rev it up to 4 grand and see if it increases. thats what i would check first.