ok i tune my afr to 14.7 like 5pm in the afternoon for partthrottle, but when in the noontime like 12-3pm my afr seem realy rich like it goes to 13.7 to 14 afr.. even do i know that i tune it to 14.7.. but wen i try to lean it that time, then try to go check out what is my afr in the afternoo its goes realy lean...
what will cause to rich in the noon time?
i will try to get a datalog this afternoon and 2morow noon time?
afr tuning diff. wen in the noon time
-
allm0t0rGSR
- Posts: 116
- Joined: Tue Jun 23, 2009 10:51 pm
afr tuning diff. wen in the noon time
You do not have the required permissions to view the files attached to this post.
It's called conditions.
In the afternoon (12-3) its slightly cooler and your IATs are probably lower (cooler air intake). Then at 5pm its warmer and your IATs are probably highter (warmer/hotter air intake)
Most likely your IAT sensor is mounted on your intake manifold (Which itself gets pretty hot to the touch)
Best thing would be to mount the IAT onto your intake (or turbo charge pipe right before the TB) so that you get the most accurate readings.
Other things that would affect your AFRs are coolant temp.
I think you should leave it how it is now. a little rich wont hurt. Wetter is better. (in safety cases)
In the afternoon (12-3) its slightly cooler and your IATs are probably lower (cooler air intake). Then at 5pm its warmer and your IATs are probably highter (warmer/hotter air intake)
Most likely your IAT sensor is mounted on your intake manifold (Which itself gets pretty hot to the touch)
Best thing would be to mount the IAT onto your intake (or turbo charge pipe right before the TB) so that you get the most accurate readings.
Other things that would affect your AFRs are coolant temp.
I think you should leave it how it is now. a little rich wont hurt. Wetter is better. (in safety cases)
-Jose
-
allm0t0rGSR
- Posts: 116
- Joined: Tue Jun 23, 2009 10:51 pm
thanks for the rep..
no it goes lean when its cold and it goes rich when its hot like when i go o work in the morning(6am) which is cold like 40-45c reading my iat and when i go home(2pm) my ait reading is like 55-60c.. my colant temp are normal the (+/-) no ECT correction but my IAT correction has (-2)... but its still rich..
what could it be wrong?
no it goes lean when its cold and it goes rich when its hot like when i go o work in the morning(6am) which is cold like 40-45c reading my iat and when i go home(2pm) my ait reading is like 55-60c.. my colant temp are normal the (+/-) no ECT correction but my IAT correction has (-2)... but its still rich..
what could it be wrong?
-
allm0t0rGSR
- Posts: 116
- Joined: Tue Jun 23, 2009 10:51 pm
thanks for the rep..
no it goes lean when its cold and it goes rich when its hot like when i go to work in the morning(6am) which is cold like 40-45c reading my iat and when i go home(2pm) my ait reading is like 55-60c.. my colant temp are normal the (+/-) no ECT correction but my IAT correction has (-2)... but its still rich..
what could it be wrong?
no it goes lean when its cold and it goes rich when its hot like when i go to work in the morning(6am) which is cold like 40-45c reading my iat and when i go home(2pm) my ait reading is like 55-60c.. my colant temp are normal the (+/-) no ECT correction but my IAT correction has (-2)... but its still rich..
what could it be wrong?