I have a 08 accord that i put a new timing chain, tensioner, head gasket, and starter on it starts right up runs perfect so hesitation or shaking and can idle and rev it for hours but when i got to drive it for like 3 min then it goes in limp mode saying it has a misfire on cylinders 1 and 4 note the head and valves are good checked them when i did the head gasket could it be loaing fuel pressure somewhere?? Never seen a car read a misfire when it doesnt run rough at all

 

Why did you replace the timing chain and head gasket?

 

I got it from a guy that said it jumped time and it has 258k miles so i just go ahead and replaced it all while i was checking the motor put water in the exhaust and intake ports with the head off and no water leaked through any of the valves

 

Did you have the cylinder head milled, so it was perfectly flat before you reinstalled the cylinder head?

Have you run a compression test on the cylinders?

 

No i didnt have the cylinders milled they didnt have any play in them and the pistons arent flat there raised in the 4 corners if that makes any sense im doing a compression test in the morning but the freeze frame on the scanner said fuel system 1 OL

 

It can have it idling in park and rev it as high as i want for hours with no hesitation or smoke no leaks and no check engine lights till i go to drive it for about 3 mins

 

I was asking if you had the cylinder head milled, so the cylinder head is perfectly flat where it contacts the head gasket. Or did you check with a straight edge that the cylinder head was flat?

 

Update all the senors were not in sync some how got them all to reset and havent had a problem yet.

 

The crankshaft sensor was not in sync so im guessing its going bad all cylinders had perfect compression