GN sick, need medicine?

[wahoo50]

Overall, engine runs OK, but when you first press the acelerator (hot or cold)it seems as though it isn't getting gas, therefore stumbles, then revs up as normal. Also misses a little while driving but not all the time, sometimes seems like its gonna cut off.

The ignition module tested OK, coil voltage checked out. New wires which ohmed out great, new plugs. Fuel pressure steady at 40psi.

TPS? Ideas anyone?

 

[salvageV6]

What chip and injectors.

What scantool are you using?

I'd look at the O2 numbers on a scanmaster or direct scan or wideband O2 monitor to see if it's rich or lean when it just starts running poorly.

Could be getting no gas or too much gas.

I'd double check the Fuel Pressure as well.

 

[wahoo50]

Thanks Sal V6, 72lb Injectors, Fast engine management. Have noticed the fuel pressure is leaking down overnight, suppose I may have a faulty injector?

 

[salvageV6]

I would consult your programmer and data log the O2s.

Perhaps post up in the engine management section that's where all the FAST tuner guys hang out I think.

Anything change recently?

I just run stock stuff it's easy for me to tell what's up usually.

I see you checked the F.P. my bad.

How do the plugs look? I'd pull a couple and check them out.

If you do your own programming look at the tip in fueling there's gotta be a page for that stuff in the fast.

Once you find out if you're rich or lean when it does it.

Is the wideband O2 working okay?