LM-1 says i'm lean at idle?
#1
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LM-1 says i'm lean at idle?
my setup:
unmolested 1.6 maf
305cc supra injectors, cleaned a tested
emanage blue set for 205/230 injector correction.
LM1 says on the cold startup(about an hour after i got home from work, so not totally cold) that i'm around 17afr and then as it warms up it settled to 15.7afr. why would warming up get richer and not leaner?
I've been under the assumption that with this setup i would be idling rich, which was also why i thought starting sometimes was a pain and idle sucked and fuel economy was garbage.
Any ideas, unfortunately i can't get into my emanage since i use my fathers laptop and he's in florida.
unmolested 1.6 maf
305cc supra injectors, cleaned a tested
emanage blue set for 205/230 injector correction.
LM1 says on the cold startup(about an hour after i got home from work, so not totally cold) that i'm around 17afr and then as it warms up it settled to 15.7afr. why would warming up get richer and not leaner?
I've been under the assumption that with this setup i would be idling rich, which was also why i thought starting sometimes was a pain and idle sucked and fuel economy was garbage.
Any ideas, unfortunately i can't get into my emanage since i use my fathers laptop and he's in florida.
#3
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I've always been lean at idle no matter what. I've been through a few afm's, injectors, removed BOV. Always close to 16:1 at idle. (Except for when I had the EMU and 550s I tuned it a little richer at idle because it felt smoother around 13:1.)
#12
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playing with it last night i found that if i tuned for ~14.7 at idle, it would cruise really rich. I can't drive with the lm1 yet becuase i was only using the o2 bung about 3 inches from the turbo, i don't want to overheat it. So i started where the lm1 said it was 14.7 at idle, then i drove cruising at light throttle and kept leaning it out till the narrow band was happy during cruise and still idled acceptably so it's probably still pretty lean at idle but not as bad and seems to start easier, also put in a brand new nb o2 sensor which seems to help.
#13
I have a theory about this.....stock IAT's are taken from the afm. The stock computer makes it's own adjustments based on intake temps. Since the AFM is so close to the turbo, it may retard things too much causing abnormal idle conditions. I'm wondering if I can relocate the temp sender to somewhere after the intercooler.
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