tuning advise needed wot ltft off

**shawnrandolph** · 09-16-2011

Alright I tuned my car using hp tuners just fine with the help of you guys and a lot of reading.
Now my car has a xp hot cam so I read that we tune to o2mv in the 920 range instead of the 940's. So I did. Under wot my ltfts are -5 from 6500maf hz up to redline
WHY?
Do I need no move my cammanded afr to like 12 instead of 11.7
Thanks just a little confused
Please dont flame we all gotta learn somehow

**shawnrandolph** · 09-16-2011

15 views no idea lol
C'mon guys i know you know more than I do

**Couch** · 09-16-2011

- knows jack about tuning. but yes i read the thread. change the title and add something with tuning in it. might get more attention that way

**FoSHO99** · 09-16-2011

PE is locking them in at -5. If you set PE enable to 100 percent throttle, it basically disables PE. Then you can slowly tune your fuel trims, don't ever go more than 50% throttle with PE disabled. Once you have them set. Re-enable PE and see if that keeps them locked in at 0 during PE

**shawnrandolph** · 09-16-2011

my trims below 7000 hz are good though just wot after 7000hz there off

**FoSHO99** · 09-16-2011

PE enables at throttle%. What does your PE enable table look like? It should be lower than stock.

**01gpgt01** · 09-16-2011

the closer to zero you get the cruise Lft's the better the chances the WOT will lock in at zero. You really need a wideband. I cant tell you how fullish it is to tune WOT on a narrowband. At 920MV my cars hitting 11.3 afr FWIW. @ 880 im around 11.8

**Z34Phoenix** · 09-17-2011

Agree'd. I have tune for friends and when you compare narrow to wide it is always diff and never consistent. 920 could be lean on one and rich on the other. to get the trims to lock in at PE/ WOT you need to have the prior cells as close to if not Zero.

Originally Posted by 01gpgt01

the closer to zero you get the cruise Lft's the better the chances the WOT will lock in at zero. You really need a wideband. I cant tell you how fullish it is to tune WOT on a narrowband. At 920MV my cars hitting 11.3 afr FWIW. @ 880 im around 11.8

**shawnrandolph** · 09-19-2011

wideband getting bought this paycheck then thanks guys

**Z34Phoenix** · 09-19-2011

if you have your EGR disabled, you can do what i did and have the output from the wideband to into the EGR. then when you do a scan you just scan for EGR voltage. i dont remember the formula right now but once you put the formula in you can log the wide band without having to run a wire to a A/D input.