MAF=Knock No MAF= No Knock...what gives??
#21
Moderator
iTrader: (11)
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,604
Likes: 0
Received 6 Likes
on
6 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech20year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Looking at that chart again, you are in closed loop, meaning
14.7:1 mixture, while at a MAP in the 90s. Hello, ping. Why
is PE not coming in? Locked out by TPS perhaps, the TPS
enable may need to come down. I don't like how drive-by-wire
cars swing the TPS independently of what you -think- your
foot is telling it. Maybe you'd be better off getting ahold of
whatever maps throttle position and make it "what I said,
dammit!" instead of "what GM thought desired torque might
be, times a bit of fudgery".
If you want to be in closed loop then you'll have to pull out
more timing, but I'm figuring anything over 25% throttle
probably means play time.
14.7:1 mixture, while at a MAP in the 90s. Hello, ping. Why
is PE not coming in? Locked out by TPS perhaps, the TPS
enable may need to come down. I don't like how drive-by-wire
cars swing the TPS independently of what you -think- your
foot is telling it. Maybe you'd be better off getting ahold of
whatever maps throttle position and make it "what I said,
dammit!" instead of "what GM thought desired torque might
be, times a bit of fudgery".
If you want to be in closed loop then you'll have to pull out
more timing, but I'm figuring anything over 25% throttle
probably means play time.
#22
TECH Senior Member
iTrader: (16)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by muncie21
Yup, that was me. Sorry to hear about the tranny. Hope you get if fixed soon, as I would still like to check out your ride.
I hope I get the parts to fix this brand new tranny soon too, spend 2 grand on a new tranny and I still have to do work to it to make it work right, hate fixing other peoples mistakes
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
So now the car is sitting again
![Sad](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_sad.gif)
#23
TECH Enthusiast
Thread Starter
iTrader: (14)
Join Date: Apr 2005
Location: NE Ohio
Posts: 591
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by frcefed98
Cool, thats an awesome vette you have there, sounds good too. I've seen you up in the heights as well.
I hope I get the parts to fix this brand new tranny soon too, spend 2 grand on a new tranny and I still have to do work to it to make it work right, hate fixing other peoples mistakes![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
So now the car is sitting again![Sad](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_sad.gif)
I hope I get the parts to fix this brand new tranny soon too, spend 2 grand on a new tranny and I still have to do work to it to make it work right, hate fixing other peoples mistakes
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
So now the car is sitting again
![Sad](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_sad.gif)
#25
TECH Enthusiast
Thread Starter
iTrader: (14)
Join Date: Apr 2005
Location: NE Ohio
Posts: 591
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by frcefed98
I take her out the track anytime she is up to the task
Hopefully she'll be running right by friday.
Parts should be here today. You get your issues solved yet?
J![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
![Burnout](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_burnout.gif)
Parts should be here today. You get your issues solved yet?
J
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
Just got back from the dyno this morning. Did some WOT AFR tuning and think she's ready to rock.