TurboBerserker

iTrader: (1)

Onyx, what's your fueling like? If you're having TC troubles, that might be contributing to the KR you're seeing (especially in the "weird" places down low). You might be getting KR from the TC trying to lock.

dewmanshu

iTrader: (4)

onyx, add a PID in your scan to watch the converter lock ect. It will at least tell you what it is up to. May not be the tell all trick, but the nice thing is as Turbo mentions, the converter is cause for some kr in alot of our trucks...with the PID turned on for the converter you can associate if the kr and locking are happening together alot easier...I mean ALOT easier.

You are also pushing a 60e right? with 3K stall and 4.10's...coupled with the fact that beast weighs in over 5300lbs...never trust that 60e with FI. Weak link, I don't care what anybody says.

I don't tune enough to add my input on the trims...I'll just lurk on that...nevermind me.

onyx

PID? i dont know that acronym. i'll do some more logging with some WOT shifts. the converter usually locks around 40 mph.

its hard to do any right now thanks to the monsoon that is hovering over my house at the moment.

im going to look into everything pointed out.

onyx

i only had 2 degrees of KR last night during logging at normal driving. the code was thrown during regular driving also which i thought was odd.

so i'll look through that log.

02sierraz71_5.3

iTrader: (2)

another easy way to tell if the converter locks set the tcc lock voltage offset to 98 its gonna cause it to feel like another shift when it locks I like it that way you will be able to feel it lock up for sure. I would pull your whole timing low and high tables by -5 then get your fueling right then go back and add timing. There is a reason you pull timing when messing with air/fuel. Its gonna take alot of time to get your lt's to fall into place the quickest method Ive found is disabling closed loop and using st's once done reenable lt's takes about 50 miles gamedawg turned me onto this method works well.

onyx

it threw the code again.

onyx

P0751

1-2 shift solenoid valve performance - no first or fourth gear.

onyx

im looking through my LTFTs and see a high of 18 and a low of 8 in the same cell.... ugh. thats not even WOT. i'll try to LTFT tune this weekend.

onyx

with my regular run yesterday, i had 2.6 KR out of nowhere.

RPM 2196
speed 46mph
TP 19%
ITA 43.0
KR 2.6
MAF 4.14 lb/min
MAP 49.00 kPa
ECT 174*F
IAT 138*F

STFT bank 1 -3.9%
STFT bank 2 2.3%
LTFT bank 1 9.4%
LTFT bank 2 12.5%

dynamic cylinder Air 0.22 g/cyl
Fuel trim cell 6

this knock just came out of nowhere. it was all normal driving.

onyx

so i guess my truck is running lean still.... ugh. im trying to do some reading up on this. but im stuck at work and am unable to mess with it how i want to.

wow... this is like my own blog.