Yeah I know I"ve already seen this kind of stuff, makes me so jelous , that one is for a 91 - 93 C/K Truck, Van, 5.7L & 7.4L (HD)


NO!!!!!!!!!!

 

Let me see if i can get some help elsewhere... if i do get the info i will modify the $EE Definition and send it to you, TC and a few others... lets just HOPE!.

 

Try changing the closed loop variable idle to see if it goes into open loop when you get to idle... hmm...

 

I don't have that option, are you disassembling the code? If you make changes let me try them out. Thanx so much.

Matt.

 

ON the constants menu

Closed Loop Idle enable vehicle speed.

 

Ohh thats nothing, thats just to get into closed loop faster, before if most didn't notice, if your car is warmed up but off & you start the car up, it would take some time to get into closed loop? Well thats cuz there is a timer, but another variable that adds to the timing is vehicle speed, if most didn't notice, if you move your car it gets into closed loop faster then if you seat there & wait, thats all. Once its in though thats it.

Matt.

 

stock setting is .9 mph should you set it to 0 and that way it wouldnt matter if your moving or sitting still right.

 

What im wondering is that it sets IDLE closed loop... so.. hmm.... i guess its the MPH thresshols for idle BLM cells...

 

like mentioned, it just speeds up getting into closed loop thats all

Matt.

 

.

 

Any progress in getting short terms to behave in PE idle? I was dorking around this weekend with my CC306 flash and I'm sort of at the same place you guys are. Trims head toward the moon in PE idle and the eyes start burning. I'm running WB's in both sides and watching Datamaster as well. For some reason I always thought learning was totaly disabled while in PE. Oh yea I'm running BLM blocker also. We need a Short term blocker also


Steve

 

My WB and Datamaster tests show that the STFT's are not just small corrections or fractions of a BLM at all. It seems that a 150 STFT increases injector PW by a full 17% just like the math would suggest. IE STFTs are not really "small on the scale of fuel trimming" Anybody else see the same thing?

Steve

 

you can not run wide band o2s on your car, for the computer to use, it wont know what to do with them, you need to put the stockers back in. your pcm has no idea what its doing with those wide band o2s in there.

theres a way to lock your short term but thats not your problem your o2s are

so you have set the car to run in pe mode at idle then.

you have to remember that the o2s are always going to respond, anytime the cars on even on start up. in open loop but the pcm ignores them, just as it does in pe mode they are reading the o2 in the exhaust but they are drop out of the loop and there values are ignored.

 

Sorry, I must not have been clear in my post. I'm still running stock O2's and feeding the stock NB voltage to the PCM. I am monitoring AFR on both banks via my TE Widebands. I am running a closed loop program, but have the PE RPM Vs TPS table set to force PE at idle RPM. I also have WOT BLM locker in my file as well. The locker is working and holding LTFTs at 128. But, since my MAF calibration file and PE table is set to force a leaner idle than 14.7 AFR according to the the stock O2's, the STFTs head skyward. I am watching all this unfold on my WB's and Datamaster. If I run 17 or 18 AFR at idle on the WBs the rich smell cleans up. As said before, NB and WB readings are really kinda garbage at idle on high overlap cammed cars. Just need to figure out a way to either control the maximum STFTs to about 132 or better yet figure out a way to force OL at idle.

Hope that makes a little more sense

Steve

 

I've got a question I've been thinking about for a while now. How would a waste spark ignition setup similar to the delteq change the false lean at idle with big cams?