Sputtering
#1
Sputtering
In June I did an upgrade to most of my motor. Heads, GM performance opti, moroso wires, GM platinum plugs, fuel pump. cleaned and tested the injectors, new fuel regulator, filter, K&N intake, long tubes cat delete, air pump delete, egr delete, 373 rear end, so on and so forth. I had already done the bore out so that was not needed. The only thing missing is Roller rockers and the computer tune...
So im driving down the road and i stop at a light. Clutch in, and it starts to sputter like its out of fuel... full tank. I pull into the gas station and check it out. seems to be fine... drove it home nothing else. Driving it around every day since it does it, and now its doing it at low pull driving. What the heck is it?
its doing it at idle, and while driving, but it just goes away... and if you accelerate its gone. I was thinking opti, but i put the spark tester on it, all firing. pulled the plugs, look new. only thing i can think is the injectors. I ran some cleaner through them and had no help.
so who knows why my car is a jerk? is it the stoopid computer?
So im driving down the road and i stop at a light. Clutch in, and it starts to sputter like its out of fuel... full tank. I pull into the gas station and check it out. seems to be fine... drove it home nothing else. Driving it around every day since it does it, and now its doing it at low pull driving. What the heck is it?
its doing it at idle, and while driving, but it just goes away... and if you accelerate its gone. I was thinking opti, but i put the spark tester on it, all firing. pulled the plugs, look new. only thing i can think is the injectors. I ran some cleaner through them and had no help.
so who knows why my car is a jerk? is it the stoopid computer?
Last edited by BudBrown; 11-03-2012 at 10:11 AM.
#3
Did you happen to get gas (in the tank) shortly before this started happening? Could be you got a bad batch.
I'd run the gas down and fill the tank back up from a different station before ripping into the car.
I'd run the gas down and fill the tank back up from a different station before ripping into the car.
#5
Join Date: Nov 2007
Location: Eastern PA,
Posts: 10,357
Wires are clean, What does that mean? You know when a wire goes bad it is because it builds resistance to voltage flow. It can look brand new. The only way to test a spark plug wire is by a scope while the car is running. If your wires are of unknown age or more then 6 years old replace them.
#6
Wires are clean, What does that mean? You know when a wire goes bad it is because it builds resistance to voltage flow. It can look brand new. The only way to test a spark plug wire is by a scope while the car is running. If your wires are of unknown age or more then 6 years old replace them.
#8
Wires are clean, What does that mean? You know when a wire goes bad it is because it builds resistance to voltage flow. It can look brand new. The only way to test a spark plug wire is by a scope while the car is running. If your wires are of unknown age or more then 6 years old replace them.
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