fugaisi420

So this is what happens my car fuel pressure reads fine on cold startup. When engine is fully warmed up fuel pressure drops to 30 then goes to 20 in a few seconds eventually dropping under and behaving like crap. Fuel pump is new. I checked the fuel pressure as well. Spark plugs and coils are new. Its weird it throws vvti sensor code and random cylinder misfire on all cylinder. Throw an individual code for each cylinder. If u let car cool it will run fine until about 15 minutes into it when it starts failing any ideas????

ISKorey

just a guess but have you checked your fuel filter? if that's clogged it could be cutting the fuel to the regulator causing it to starve the engine and causing the misfire on all cylinders (if it was one id have other suspicions).
if that's not the case you can always find a scanner tool that will test all the sensors. Letting the car cool down just allows for gas to pass through what ever could be clogging the fuel filter and feeding the engine until it warms up.

Also is the car overheating or anything else out of the ordinary?