Too much boost and engine load.

[StealBlueSHO]

Ok, so that good run is a full multigear run... Interesting though that you are saying you dont normally see 20PSI but in the good run you are spiking that high as well. Actually, the good run looks very similar to the bad run you sent as far as load, boost, timing, etc... being a mile high above sea level explains the high WGDC numbers... air is thin up there...

I would agree with the SHOdded on this one, looks like the winter gas is killing your fuel pressure and giving you knock issues now.

Your tuner is giving you BIG boost and little to no timing advance.. probably much less than stock? I have not seen timing that low on a Ecoboost datalog before, but to be fair, I don't normally look at the F150 datalogs...

I would run that bad boy stock until the summer blends come back IMHO

 

[ZSHO]

I would suggest trying a fuel stabilizer or octane booster which have proven to have negligible results for winter-blend gas and monitor for any changes. Z

 

[ajpturbo]

Steal blue is is pretty accurate with the assessment...It's a pretty unrefined tune if tuned at all...Desired TIP is all over the place along with commanded AFR...Fuel enrichment looks like it was left stock along with the commanded boost..Maybe just globally increased.

Spark on a lot of ecoboost engines is really low compared to the SHO but there is a big difference between the logs

I would be comfortable running that with those huge dips in fuel pressure.

I wouldn't be so quick to say it's just winter fuel...Could be a lot of less than ideal things adding up to a problematic tune.

 

[8nutz8]

boosted150- i'm in CO as well and have a couple stations that i know have verified good fuel. i'm tuned by AJP and fuel quality hasn't been an issue-even as of late with possible winter blends.what part of town are you in? id be happy to share.


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[8nutz8]

i would say i think the issue is with your tune overall-but getting good fuel would rule one thing out at least


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[Boosted150]

I am sure all tuners are now aware of the cold weather issues, but there is an ambient temp drop of 20F, plus possibly a winter gas issue involved.  In CO, you only get 91 right?  So running "91" gas might not be enough anymore.

Yes we only get the crap 91 octane.

Ok, so that good run is a full multigear run... Interesting though that you are saying you dont normally see 20PSI but in the good run you are spiking that high as well. Actually, the good run looks very similar to the bad run you sent as far as load, boost, timing, etc... being a mile high above sea level explains the high WGDC numbers... air is thin up there...

I would agree with the SHOdded on this one, looks like the winter gas is killing your fuel pressure and giving you knock issues now.

Your tuner is giving you BIG boost and little to no timing advance.. probably much less than stock? I have not seen timing that low on a Ecoboost datalog before, but to be fair, I don't normally look at the F150 datalogs...

I would run that bad boy stock until the summer blends come back IMHO

My bad I guess I should look into logs more still new to data logging, I just never have never seen 20 lbs and load over 2 on live wire programmer screen maybe it's off a little or something. And rarely seen knock levels above 2 under wot.

boosted150- i'm in CO as well and have a couple stations that i know have verified good fuel. i'm tuned by AJP and fuel quality hasn't been an issue-even as of late with possible winter blends.what part of town are you in? id be happy to share.

I live in Thornton yeah I would love to find some local ecoboost guys or tuner shop is AJP local?

i would say i think the issue is with your tune overall-but getting good fuel would rule one thing out at least

Yes I put the truck back to stock will be talking with my tuner again but I have a quarter tank left to run out before I can refill.

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[8nutz8]

i'll pm you with a reply boosted150. don't want to clutter the thread.


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