#2#4#6 missfire?

BEASTJEEP95 · October 22, 2006

Hey everyone-

Got a strange problem, 95 CPI with no fires on two four and six. Happend sudden when i was heading home. Smackd the gas from a stop sight, made the nornal chirp sound into second, and as soon as it shifted i had hardly any power at all. Have plenty of spark. Headers on right side are cold too touch when i can get it to run, but left side heats right up. I havent taken off the upper plenum but its the next thing i am going to do. Anyone know how this focking spider junk s**t injector banks, there are only two wires to it. Anyone?

95Sierra2500 · October 23, 2006

Sounds like your poppet nozzles on the passenger side are not opening because they're not being pressurized. Could be a bad injector, regulator, or something along those lines. It's definately fuel related I'd say if you have spark at all cylinders but no ignition.

BEASTJEEP95 · October 23, 2006

I THINK IT IS FUEL ALSO. BUT WHY ALL THREE AT THE SAME TIME? THE ENGINE ALSO SMOKES BAD, IT IS A FUEL SMOKE. FUEL WILL DRIP OUT OF THE EXHAUST PIPE. MABY THE INJECTORS ARE LEAKING. I PULLED THE NOZZLES AND SHOT AIR THROUGH THEM, THEY WERE NOT CLOGGED.

ChevyTech007 · October 23, 2006

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Black Bart · October 23, 2006

You may want to check your injector fuses.

95Sierra2500 · October 24, 2006

You may want to check your injector fuses.

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He's only got 1 injector that has 6 poppet nozzles at the ends of a spider assembly. Really dumb setup, they could have put a fuel rail on it for the effort they took to put the fuel system inside the manifold.

BEASTJEEP95 · October 25, 2006

I THINK IT IS FUEL ALSO. BUT WHY ALL THREE AT THE SAME TIME? THE ENGINE ALSO SMOKES BAD, IT IS A FUEL SMOKE. FUEL WILL DRIP OUT OF THE EXHAUST PIPE. MABY THE INJECTORS ARE LEAKING. I PULLED THE NOZZLES AND SHOT AIR THROUGH THEM, THEY WERE NOT CLOGGED.

95Sierra2500 · October 25, 2006

As I said, you have 1 injector. It may be bad, or you may have other issues in regards to fuel. Also, the poppet nozzles will stick open or closed, either one is a possibility. Shooting air through them doesn't necessarily fix the problem.

BEASTJEEP95 · October 27, 2006

Could it be the fuel pressure regulator? I pulled off the plentum and when I had the fuel pump kick on fuel squirted out of a hole on the regulator. I am pretty sure liquid fuel is not supose to be sitting in the bottom of the intake manifold. I also put power to the injector with some spair wire, the injector had fuel pressure behind it but nothing happened it would just click.