Page 1 of 1
Breakup with light throttle + light load
Posted: Tue Aug 09, 2011 2:48 am
by markoshust
Things are running good, but it seems that when I am at light load (~2k) and light throttle, there is some slight breakup (I hear a 'pop' like its misfiring) and my a/f gauge reads lean. What could cause this? I tried switching various parameters but it appears nothing is helping.
Thanks,
Mark
Re: Breakup with light throttle + light load
Posted: Tue Aug 09, 2011 11:12 am
by Matt
Sounds potentially AFM related
Need more info... what car/engine, what AFM are you using, when did the problem start occurring, do you have log files with the injection time, rpm, AFRs etc
Re: Breakup with light throttle + light load
Posted: Tue Aug 09, 2011 3:31 pm
by markoshust
240SX with KA24DE, PT5858E turbo, Ford Lightning 4" MAF, 75# Delphi injectors.
Runs great under boost. Has been happening since I got the turbo setup up and running.
Here is a log of the car at idle and slight cruising
http://shust.com/240sx/log_2011-08-06_2158_23.csv