2014 jeep procharged goes lean above 200KPA

[Ditosmotors]

2014 Jeep F1A, forged internals, mystery cam, 6.1 intake, 90mm tb, long tubes, E85 with triple fore pump kit, ID 1300X.

When the boost gets to about 14-15 psi this thing goes extremely lean. When I was running a larger blower pulley and made only 12psi at 6600rpm this problem did not happen. Now that I changed the pulley and am making about 14.5psi at 6000 rpm it will go lean. In the logs I can see it hit 200KPA and the injector duty cycle with go from 66% down to 25%. I also noticed the pratio drops down from 2.00 to .73 and lastly I also noticed the air charge go from roughly 1200 down to 720. This also causes the timing to shot up. I thought someone else had run into this problem on here but I cant seem to type in the correct keywords to find that post.

The log is kind of long but if you skip to 9:54:55 you will see what I'm talking about.

[[email protected]]

Try "clamping" you MAP at 1.80 and see if that corrects the issue. If it does you will need to be creative with your WOT fueling but it can be done.

[SultanHassanMasTuning]

i would go for a 3 bar so even if you change your pulley again you dont have to retune

[Hemituna]

Looks like it is already 3 bar MAP sensor but doesn't like a PR above 2.00....weird..
Unless there is a problem within the max PR table...so maybe try some other numbers in there.
Worst case if that doesn't change things, just rescale the MAP sensor slightly to read a lil lazy so it doesn't hit 2.00 PR.
Tweak the offset to read correct baro at KoKo and with a lil retuning it will be golden.

[[email protected]]

We see this issue quite a bit and I can't seem to tie it to a specific year/model. It started back in 2009 with RT's and I still have the issue on 17 JK's. Once you exceed 1.80-2.00 PR the injectors shut off. If there is another fix I would love to know what it is. We just set the max PR to 1.80 or 1.85 and the issue is resolved.

[Ditosmotors]

where is that max pr table?

At last resort I'll either try clamping that Max pr to 1.8 when I get a chance to get back on it or I'll go back to a diffrent pulley. I was thinking I was hitting some sort of torque limit or air flow limit.