Interesting MAF issue... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

***dorkidori_s13*** · 02-27-2012, 02:55 AM

so im cruising along tonight on the freeway across town and suddenly my car starts acting like the MAF is loose/not responding. i manage to get off the freeway and pull over to parking lot to check things out. the car doesnt want to stay running so i let it die. try to start it again a few times and just keeps turning. so step 1, i unplugged the MAF, the car goes into closed loop mode and runs just fine. i get someone to bring me my extra SR maf ive had laying around (which was pulled from my running redtop like 3-4 years when i switched to a MAP with my PowerFC), mount it back in the car, car turns over and runs fine. driving back home about 10 minutes later it starts pulling the same business...sooooo i pull over and remount the stupid thing in a different position.

where i think the issue is stemming from is last week i mounted my MAF sideways in the engine bay from my intake pipe (see pic below for example)...

MAF IS MOUNTED SIDEWAYS (plastic box pointing in toward the hot pipe)

after round two of new MAF being stupid, i remounted it straight up (see pic below for example)...

MAF IS MOUNTED STRAIGHT UP (plastic box pointing up toward the hood again)

got back in the car and drove the rest of the way home with no issues.

my question is (and it almost seems obvious but ill pose the question anyway), are there issues with mounting the MAF sideways in the engine bay? my thinking is that mounting it sideways causes the small springs inside to gravitate in the wrong direction (or rather clump together improperly) thus not allowing proper registration of air going past them.

input would be much appreciated as i am very curious on this situation, and YES, i searched quite a bit, didnt really pull anything up relating to my problem.

02-27-2012, 02:55 AM	#1
*dorkidori_s13* ITS LISA'S FAULT!!! Join Date: Jun 2003 Location: Las Vegas Age: 43 Posts: 7,496 Trader Rating: (41) Feedback Score: 41 reviews	Interesting MAF issue... so im cruising along tonight on the freeway across town and suddenly my car starts acting like the MAF is loose/not responding. i manage to get off the freeway and pull over to parking lot to check things out. the car doesnt want to stay running so i let it die. try to start it again a few times and just keeps turning. so step 1, i unplugged the MAF, the car goes into closed loop mode and runs just fine. i get someone to bring me my extra SR maf ive had laying around (which was pulled from my running redtop like 3-4 years when i switched to a MAP with my PowerFC), mount it back in the car, car turns over and runs fine. driving back home about 10 minutes later it starts pulling the same business...sooooo i pull over and remount the stupid thing in a different position. where i think the issue is stemming from is last week i mounted my MAF sideways in the engine bay from my intake pipe (see pic below for example)... MAF IS MOUNTED SIDEWAYS (plastic box pointing in toward the hot pipe) after round two of new MAF being stupid, i remounted it straight up (see pic below for example)... MAF IS MOUNTED STRAIGHT UP (plastic box pointing up toward the hood again) got back in the car and drove the rest of the way home with no issues. my question is (and it almost seems obvious but ill pose the question anyway), are there issues with mounting the MAF sideways in the engine bay? my thinking is that mounting it sideways causes the small springs inside to gravitate in the wrong direction (or rather clump together improperly) thus not allowing proper registration of air going past them. input would be much appreciated as i am very curious on this situation, and YES, i searched quite a bit, didnt really pull anything up relating to my problem. __________________ Check out my IG for what I'm up to! DORKIDORI INSTAGRAM!!!