Thread: PCM tuning LTFT's issue

LTFT’s at about 11 or 12 when idling or I take my foot of the gas while cruising. When accelerating or with cruise control on they are at about 5. I have tried to tune the LTFT’s following Gary's HP Tuners Basic Tuning 101 but have not had much luck. I only have the HPTUNER suite for scanning and tuning. Do I need to buy something else? Would using a Mini AFC Air fuel controller help get my LTFT’s under control?

Thanks

Current mods:

· Wizaired CAI with 4" K&N filter
· ZZP 1.0 pcm
· 3.4" Modular pulley system
· Smaller supercharger belt
· ZZP 3" bolt in aluminized cat'd downpipe
· Autolite 104 spark plugs
· 180* thermostat and gasket
· 304 stainless Powerlog


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Originally Posted by mikesarebetter

have you scanned for knock at all? i'd be surprised if you had 0 kr.

and do get rid of that zzp pcm.. reptile recently went over mine and turned it into a slightly modded dhp tune and he found some things crazy on the zzp tune... like all torque management gone.

Hi there. Thank you for the reply. I am getting about 4 deg kr max. I also am using a intense file on my pcm. Trying to learn tuning both we got a snow storm here so things are kind of on hold.

Originally Posted by 01GTP

when you let off the gas that is the decell lean out and is normal. You are line at idle with is normal. 5 is a little high for your trim. I try to get down around 2-3. Just as long as they lock in at zero at Wot you will be fine.

So it should be alright? Its just my gas is gone to 17 mpg...

Originally Posted by FoSHO99

Are you adjusting the maf table for fuel trim tuning? Whats your wot 02 readings? What is the base pe? A few things factor into this, i would get rid of the intense tune, keep their trans settings if you like them and start over fresh.

Hi there, thank you for the reply.

I am trying to adjust the maf table. It looked god today from the scan I took but I wasn't able to get on it due to the weather. Sorry, Im a noob when it comes to HPTUners. Im still trying to get all the info and help I can get with it. I want able to get any wot 02 today but my last scan had 915, 922, 922.

Where would I find my base pe in HPTuners?

What tune would be good to go off of? Should I just go with a factory tune? I have been looking at guides and trying to figure things out. Lately my gas millage is getting pretty bad.

thanks