Help VT 2000 Supercharger misfire?

[shadowatcher]

We're all the wet plugs from the same side of the engine?

Have you checked for fault codes maybe O2 sensor causing over fueling.

Ran a test shows different mV and one not ready? I replaced 02 sensors not long ago :-/ could one be to wet with fuel?

 

[ant797]

Ok, no leakage from vac hose. Removed injectors and sprayed brake clean through them, i did notice when i shock the injectors i could hear a rattle but a couple had no rattle? Re installed injectors car ran abit better then started missing again with fuel running down the block and alot of fuel comeing out of exhust . Injector failing?

dont take my word for it i know little about injectors and never shook one to see if it rattles but pretty sure they have a pintile inside them that opens and closes up and down like a valve operated by a solanoid the two that diddnt rattle could be stuck open maybe

 

[Utel67]

Ran a test shows different mV and one not ready? I replaced 02 sensors not long ago :-/ could one be to wet with fuel?

Are you using tuner pro for testing, if so are there any fault codes.

 

[shadowatcher]

Are you using tuner pro for testing, if so are there any fault codes.

Yeah I am there are no fault codes coming up, just looking at the data table the 02 sensors have different voltages and one sensor seem to be ready then not ready? But everything else appears ok.

 

[Utel67]

Post up a log with the ADX your using.

 

[shadowatcher]

Post up a log with the ADX your using.

I've used the following:
VT V6 and V8 - A5-A6 engine and trans.....
VT_V6_$A5G_Enhanced_v1.0a

I have also had a go with Advanced Engine Diagnostics

 

[Drummer]

Hey.

Don`t do on HOT engine. Remove the fuel rail from manifold, leave the fuel lines on, injectors clipped in and wires on, when you turn key to on the fuel pump will run for 2 seconds, you should see No fuel come from injectors. it sounds like one of your injectors is stuck open, which will cause the fuel in exhaust and misfire.

 

[shadowatcher]

Hey.

Don`t do on HOT engine. Remove the fuel rail from manifold, leave the fuel lines on, injectors clipped in and wires on, when you turn key to on the fuel pump will run for 2 seconds, you should see No fuel come from injectors. it sounds like one of your injectors is stuck open, which will cause the fuel in exhaust and misfire.

Thank you will try that today

 

[mirrabucca]

From your original post you said: "Replaced inlet gasket, re-kit injectors, flush cooling system. Now its misfireing and fuel appears to be running down the block by cylinder 1"
Unless you did something funny with the manifold gasket, my bet is odds on its the injector for number one cylinder.
Where exactly is the fuel coming from? It would have to be coming from the injector boss in the inlet manifiold? If so, it would have to be the O ring that's pinched/stuffed.
Dismantle the top 1/2 of the inlet manifold, remove fuel rail and double check the injectors. If you dont find anything that looks wrong (bad/damaged O rings etc) swap the injector from number one with another one. See how you go.

 

[shadowatcher]

Hey all, Just an update. Finally had the pennies to buy some new injectors decided to replace them all as figured be cheaper in the long run, all was good . Then I noticed puffs of white coming out of exhaust... Left over fuel?? And now have a coolant leak coming from the front of the engine some where . Any ideas?