PDA

View Full Version : MAF issues


pewpew
05-30-2009, 03:10 PM
Im trying to get my idle stabilized. The idle is hunting as it warms up, but stabilizes after about 10 minutes of drive time, and then again hunting after "spirited" driving deceleration . my relevant mods are as follows:

Sr20det
740cc nismo inj
splitfire coilpacks
z32 MAF
innovative blue gauge LC-1 kit (wideband O2 meter)
255 walbro fuel pump
nismo FPR----my FPR sets at 38psi
apexi powerFC controller
garrett 50trim t3/t4---set at 15lbs boost

my A/F gauge reads out at 15.8-16.4 when it is hunting. (I was told by Chuck at Adrenaline that my gauge wasnt accurate for some reason, so here is my PowerFC read outs)

my powerFC reads out at 1158 mV when its hunting also.
injector duty reads out at 1.3%
ignition timing 32 dgrees
rpm 1191ish
79 degrees C

it has a slight lean miss-fire at idle, and i believe thats what might be causing the hunting issue.

any suggestions ?
questions ?

thanks in advance Zilvia !

pewpew
05-31-2009, 09:44 AM
1st bump
please help :)

Sileighty_85
05-31-2009, 10:51 AM
Check for boost/Vac leaks

Clean MAF/ IACV With MAF cleaner