- Sun Jun 19, 2016 10:23 pm
#359329
A little background on my engine:
ALL REPLACED 15K OR LESS AGO:
- water pump
- head gasket
- Reaurfaced head
- piston rings
- rods/Pistons
- rod bearings
- crank bearings
- fuel pump
- fuel filter
- valve cover gasket
- spark plug tube seals
- dizzy
Now, the problem. After I rebuilt the engine, everything went fine as far as the engine goes. It ran smoothly and fine. When I give the car a rev or when I'm driving and I put my foot down more than just a tap, it sputters and sounds kind of like its misfiring. Then, at about 3500 to 4K RPMS, it clears up and runs strong. Twisting the injectors in the fuel rail sometimes make the car run fine. Might be the injector connections? A couple months ago, I pulled the injectors and soaked them in seafoam and then tightened the fuel rail back down. Ran with no problems for around 5K miles. Started acting up about 150 miles ago. No CELs. I'm starting to think it could be the MAP sensor since the symptoms are: rough acceleration, smelling of gas, and sudden jerks or hesitation upon acceleration.
Can anyone help narrow down my problem? I'm planning on pulling the spark plugs tonight to see if they're fouled. Then maybe doing a compression test.
ALL REPLACED 15K OR LESS AGO:
- water pump
- head gasket
- Reaurfaced head
- piston rings
- rods/Pistons
- rod bearings
- crank bearings
- fuel pump
- fuel filter
- valve cover gasket
- spark plug tube seals
- dizzy
Now, the problem. After I rebuilt the engine, everything went fine as far as the engine goes. It ran smoothly and fine. When I give the car a rev or when I'm driving and I put my foot down more than just a tap, it sputters and sounds kind of like its misfiring. Then, at about 3500 to 4K RPMS, it clears up and runs strong. Twisting the injectors in the fuel rail sometimes make the car run fine. Might be the injector connections? A couple months ago, I pulled the injectors and soaked them in seafoam and then tightened the fuel rail back down. Ran with no problems for around 5K miles. Started acting up about 150 miles ago. No CELs. I'm starting to think it could be the MAP sensor since the symptoms are: rough acceleration, smelling of gas, and sudden jerks or hesitation upon acceleration.
Can anyone help narrow down my problem? I'm planning on pulling the spark plugs tonight to see if they're fouled. Then maybe doing a compression test.