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?

 

sounds like a bad plug or wire.

 

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.

 

ive gone through 3 tanks

nothing. the wires are all clean i checked them

i guess its time for plugs...

 

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.

 

Lol yes hmm, clean wires aye? Change Over to some denso iridiums if you don't like copper plugs due to shorter lifespan

 

Only thing I can think of is run a fuel pressure gauge on the shader valve and make sure you have good psi

 

Clean means that I have a spark tester and checked the wires. Plugged in the wires and on the plugs. They are new. The only thing i have not done electrical is pulled all the plugs. I have not checked my injectors yet either. I just wanted to rule out as many as i could. I'm gonna pull the plugs and go from there.

 

Kk mang. Sounds like the right path

 

I'll get to work on it this weekend cant do anything till pay day... dang responsible behavior getting in my way