Truck Mis-Firing

[pl4yboy]

Allen, Devin wasn't bashing your tuning at all. He said nothing about the tune. You know as well as anyone that vehicles can develope a rich or lean condition from many factors other than the tune. I'm not trying to start anything either... just clarifying on Devin's behalf.

[RUFFNECK]

I'm running my gauges for the turbo setup so I'll go ahead hook up the fuel pressure gauge. Dealer replaced an o2 sensor today and it fixed the mis fire, it still cuts out under WOT, feeling like no fuel so I'm thinking low fuel pressure. Nothing wrong w/ the tune, it just feels like its not getting enough fuel. Thanks for the help!

I am having a similar problem. At WOT it feels as if a governor is kicking in, especially right before a shift. So I am curious to see what comes of this.

[BigMac]

I'm looking for a fuel pressure gauge to see if thats my prob, the cutting out is even worse under tow/haul mode... but thats making it run up higher in the rps's before shifting. Are you in the Midland area Ruffneck?

[RUFFNECK]

Yes I live in the Midland area.

[farmtruc]

Allen, Devin wasn't bashing your tuning at all. He said nothing about the tune. You know as well as anyone that vehicles can develope a rich or lean condition from many factors other than the tune. I'm not trying to start anything either... just clarifying on Devin's behalf.

That's perfectly understandable and trust me, I'm not trying to start it, lol, but he said TIMING, that is only related to tuning, and too much timing can't cause the issues his truck is experiencing.

I also was perfectly clear that I wasn't including lean or rich in that remark, just the TIMING, then I asked him to explain how timing can cause that and how else could too much timing be applied besides with tuning.
I know he didn't say it, but Timing and Tuning go hand in hand.
It's just remarks like that from someone towards another who is trying to get his truck running right, causes the truck owner to call and question the tune every time!
You wouldn't believe how many calls we get like that.

btw, we're tuning up a 6.2L to run your truck at the race track, it's all stock, but still should be fun.

[pl4yboy]

Damn... I better throw some more at this one then because I'm sure its an ECSB 2wd that weighs 600+lbs less! GDI... why do you have to make it hard on me?!

[farmtruc]

it's just stock, so i'm sure you can take it, stock exhaust, everything, just hoping to get some good times from it.