PDA

View Full Version : No MAF sensor


Micko66
03-11-2017, 02:39 AM
Do you think an E36 can run with no MAF sensor?

Here's proof.

https://www.youtube.com/watch?v=S1TM9e_leLA

Symptoms are very similar to those of having an inoperative VANOS.
BimmerJM325is
03-11-2017, 03:00 AM
And?
Micko66
03-11-2017, 03:13 AM
Really?

Have you ever tried this?
BimmerJM325is
03-11-2017, 03:17 AM
No, but how is this helping someone diagnose an issue? Are you saying that an inoperative MAF won't cause drivability issues?
Micko66
03-11-2017, 03:24 AM
No. Had you read my other thread on VANOS issues, (rather than making a one or two word comment) you'd see that having an inoperative MAF gives similar symptoms to a bad VANOS.

With my $500 junkbox 323i I'm trying to show people what can happen, and the symptoms, so that people (like you) with really nice E36's don't have to.
BimmerJM325is
03-11-2017, 03:29 AM
I apologize.. I did not see your other post. Makes sense why I was confused as to where you were coming from. Thanks for sharing.
flyfishvt
03-11-2017, 07:05 AM
We've always known that you can run a car without an MAF. It will make your engine run extremely rich. No big revelations here. I've never heard anyone say it can't be done. There even a method of tuning that eliminates the need for one. It's called Alpha N.
somebody5788
03-11-2017, 10:05 AM
One of the oldest tricks in the book for helping diagnose a car that has a bad MAF or large vacuum leak is to see if it runs better with no MAF. It's not a true test but it helps to guide a technician in the correct direction. Or in the case of E46's when they come in on a tow truck not running with a completely ripped MAF boot I just walk out unplug the MAF and drive it in haha.
Micko66
03-11-2017, 05:15 PM
We've always known that you can run a car without an MAF. It will make your engine run extremely rich. No big revelations here. I've never heard anyone say it can't be done. There even a method of tuning that eliminates the need for one. It's called Alpha N.

That's not my point.
ColtonBH
03-11-2017, 05:53 PM
That's not my point.
What is your point?

Sent from my Nexus 6P using Tapatalk
boarder2k7
03-11-2017, 07:23 PM
What is your point?

Sent from my Nexus 6P using Tapatalk

That you should have a pansophical knowledge of all other threads before answering one that looks like a non-sequitur? :dunno
JClaptonH
03-11-2017, 08:16 PM
This is obviously Micko's point :
One of the oldest tricks in the book for helping diagnose a car that has a bad MAF or large vacuum leak is to see if it runs better with no MAF. It's not a true test but it helps to guide a technician in the correct direction. Or in the case of E46's when they come in on a tow truck not running with a completely ripped MAF boot I just walk out unplug the MAF and drive it in haha.+1. Which is the basis of the disconnect test : http://www.bimmerfest.com/forums/showthread.php?t=882489&highlight=Thank you Micko.
JClaptonH
03-12-2017, 03:12 AM
One of the oldest tricks in the book for helping diagnose a car that has a bad MAF or large vacuum leak is to see if it runs better with no MAF. It's not a true test but it helps to guide a technician in the correct direction. Or in the case of E46's when they come in on a tow truck not running with a completely ripped MAF boot I just walk out unplug the MAF and drive it in haha.I think the above was Micko's point. Thank you Micko.It also ties in with the disconnect test. http://www.bimmerfest.com/forums/showthread.php?t=882489&highlight=