Third week of MS troubleshooting
#21
So i recalibrated the lc1 and it got a LITTLE better. Without any editing the AFR was no longer pegged at 7.4 and went up to about 7.6-7.8. I changed the fuel required and was able to get it to idle at about 9.5-10. When i rev it and it gets anywhere near the proper AFR the car begins to idle bad and die quietly.
The gas smell is overwhelming.
The gas smell is overwhelming.
#22
Frustration leve, lol. Mine's like infinity/zero right now....
Did you recalbrate with it in the exhaust after sitting or did you remove it? I'd try removing it just to be damn sure. Sounds like it's off to me. What does the gauge for your wideband read vs. what megatune says? If your gauge reads reasonable numbers and MS doesn't, this is a software issue not a calibration issue.
Do you have the LC-1's output setup? IE-did you go into LM programmer and set it up? It's like 0-5V 10-20 AFR or something like that. Just make sure you do the same settings there that you do in megatune.
Did you recalbrate with it in the exhaust after sitting or did you remove it? I'd try removing it just to be damn sure. Sounds like it's off to me. What does the gauge for your wideband read vs. what megatune says? If your gauge reads reasonable numbers and MS doesn't, this is a software issue not a calibration issue.
Do you have the LC-1's output setup? IE-did you go into LM programmer and set it up? It's like 0-5V 10-20 AFR or something like that. Just make sure you do the same settings there that you do in megatune.
#23
Frustration leve, lol. Mine's like infinity/zero right now....
Did you recalbrate with it in the exhaust after sitting or did you remove it? I'd try removing it just to be damn sure. Sounds like it's off to me. What does the gauge for your wideband read vs. what megatune says? If your gauge reads reasonable numbers and MS doesn't, this is a software issue not a calibration issue.
Do you have the LC-1's output setup? IE-did you go into LM programmer and set it up? It's like 0-5V 10-20 AFR or something like that. Just make sure you do the same settings there that you do in megatune.
Did you recalbrate with it in the exhaust after sitting or did you remove it? I'd try removing it just to be damn sure. Sounds like it's off to me. What does the gauge for your wideband read vs. what megatune says? If your gauge reads reasonable numbers and MS doesn't, this is a software issue not a calibration issue.
Do you have the LC-1's output setup? IE-did you go into LM programmer and set it up? It's like 0-5V 10-20 AFR or something like that. Just make sure you do the same settings there that you do in megatune.
#26
Ok, now im pretty mad. There is no way i can lean it out without it dying. When i slowly decrease the VE it would lean out, but its never steady. Its like once it gets to 14 i just keeps going slowly all the way to 22.4 which it then shuts down.
Im getting tired of this. Thinking of selling this pos and just buying a car where a tune involves plugging in a obd2 wire and press 1 button.
Im getting tired of this. Thinking of selling this pos and just buying a car where a tune involves plugging in a obd2 wire and press 1 button.
#28
MS can be one hell of a headache at times. Believe me.
I STILL don't think you have the LC-1 programmed correctly. For one, if you had it 0-5V 10:20 AFR, then it wouldn't spit out a 7:1 or 22.4:1 AFR in the first place. So backup and read about programing the LC-1 and do that.
I STILL don't think you have the LC-1 programmed correctly. For one, if you had it 0-5V 10:20 AFR, then it wouldn't spit out a 7:1 or 22.4:1 AFR in the first place. So backup and read about programing the LC-1 and do that.
Here is what joe told me.
Ok, you've got an LC1 wideband sensor, set to the default of 0v = .5λ and 5v = 1.5λ. If you do the math, 0.5λ with gasoline is 7.35:1, and 1.5λ is about 22.1. So all you should need to do is go into MegaTune Configurator (which can be launched from the start menu or from within Megatune) and set it up for the LC-1 default.
#30
No i did not set it up in LM, but i think i found my problem. I think i have read more on the MS boards than i have in my last 2 years of college. Good thing too because i found this gem. https://www.miataturbo.net/forum/t26149/
Mine was on as well. As i turned it off, i was able to lower my VE tables by a factor of about .9. This gave me the idle that is in AFR table as 13.3.
I was actually able to drive the car! Now i have fine tuning to go, but at least now my urge to sell the car has diminished.
Im including a new log file of my very short run. There is 2 points that concern me, they begin at about record 940. My AFR goes max lean while my PW goes to 0. What could explain this?
Thank you pat for all your help, if you were here, id pour you a shot.
Mine was on as well. As i turned it off, i was able to lower my VE tables by a factor of about .9. This gave me the idle that is in AFR table as 13.3.
I was actually able to drive the car! Now i have fine tuning to go, but at least now my urge to sell the car has diminished.
Im including a new log file of my very short run. There is 2 points that concern me, they begin at about record 940. My AFR goes max lean while my PW goes to 0. What could explain this?
Thank you pat for all your help, if you were here, id pour you a shot.
Last edited by jobambo; 11-09-2008 at 08:37 PM.
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