Can a bad MAF cause a car to shutdown - Cobalt SS Network



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Old 11-02-2009, 10:42 AM   #1
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Can a bad MAF cause a car to shutdown

Can a bad MAF cause a car to shutdown ? i need help, i drilled for a hood pin and a little bit of metal chards went down the air bod then i used a magnet to retreve the shards do you think it might of dammaged the MAF, could this be the result of my car shutting down?


please help its dangerous. i cant drive my car



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Old 11-02-2009, 10:48 AM   #2
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how did metal shavings get into an air box with a cover???? And why hood pins on a cobalt??
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Old 11-02-2009, 10:49 AM   #3
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remote start hood pin. we had to take the intake apart just the first section.
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Old 11-02-2009, 10:51 AM   #4
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ah.....What type of cobalt do you have?? 2.4, 2.2, tc....If you have a bad maf sensor it can cause the car to act weird and even shut down....MAfs are very very sensitive
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Old 11-02-2009, 10:55 AM   #5
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2006 cobalt supercharge 2.0
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Old 11-02-2009, 10:57 AM   #6
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oh thats not good, if it gets into the supercharger your pretty much screwed :S
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Old 11-02-2009, 11:11 AM   #7
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you mean my supercharger is effed and thats why my car is shutting down?
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Old 11-02-2009, 11:20 AM   #8
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I dont think hes saying that nessisaraly but metal shavings can harm your supercharger. You have to relize inside your blower are ceramic screws that are close together.. little metal shavings can get into that and damage them and get down ur manifold and into your motor so you have little metal shavings bouncing around inside your motor up and all over. witch is not good. someone correct me if im wrong im just saying this off of comon sense and half knowledge of a motor.

you should of..
1.) taken your hood off.
2.) took a towel or some sort of cover and put it on your motor.
3.) not do it at all why do u need hood pins again?..lol
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Old 11-02-2009, 11:23 AM   #9
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i know what you guys are saying but my car feel fine and sounds fine, it will shut down and wont start back up until the BCM completely shuts down. so i have to open a door and shut it and wait till the interior lights and gauges is completely off then starts back up like a charm.
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Old 11-02-2009, 11:27 AM   #10
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You have to relize inside your blower are Aluminum screws that are close together..
fixed
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Old 11-02-2009, 11:32 AM   #11
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Hmm, thats odd.. I never heard of that. what i will say is either 1 its an electrical problem im sure the electrical system would shut the car off or 2 its the maf. it might have a peice of metal on the little sensor witch is a peice of metal that heats up. if theres somthing on it it could be giving a false reading making the car shut off. yet again someone correct me if im wrong.

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fixed
thank you =] someone told me they where ceramic or i read it someware they where but thank you for correcting me now i know the troof lol

Last edited by StageII07; 11-02-2009 at 11:32 AM. Reason: Automerged Doublepost
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Old 11-02-2009, 12:04 PM   #12
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im going to try and turn the remote start off by taking power out of it, then factory wire the ignition. if that dosent work then probably my MAF. damnit i hope this works im really hurting i live far from work.
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Old 11-02-2009, 12:05 PM   #13
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thank you =] someone told me they where ceramic or i read it someware they where but thank you for correcting me now i know the troof lol


They have a powder coating on them, but underneath they are aluminum. =) (the pict has most of the coating eatten off by me spraying a crap load of methanol through it though..lol)
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Old 11-02-2009, 01:06 PM   #14
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They have a powder coating on them, but underneath they are aluminum. =) (the pict has most of the coating eatten off by me spraying a crap load of methanol through it though..lol)
lol i didnt know meth would do that to the coating on them. isnt it bad for the supercharger?
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Old 11-02-2009, 01:23 PM   #15
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my question remains can a bad MAF shut down a car is it possible?
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Old 11-02-2009, 01:26 PM   #16
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my question remains can a bad MAF shut down a car is it possible?
Typically, the maf wouldn't shut down the car, it should throw a cel and flip over to the VE tables if the maf is totally bad.

I'd bet on your remote start being the issue since this started after you installed it..

Last edited by 383_Stroker; 11-02-2009 at 01:57 PM.
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Old 11-02-2009, 01:31 PM   #17
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my question remains can a bad MAF shut down a car is it possible?
yea it'll make it run really funky.
and it can sputter and die.
mine was def doing this before when i had a maf issue.
i replaced it and it ran fine.
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Old 11-02-2009, 02:30 PM   #18
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i want to keep my remote start its awesome i would hate to get it uninstalled to find that its not the remote start installs fault ive already spent over 500$ in this.
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Old 11-02-2009, 04:20 PM   #19
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my money is on vacuum leak where you took the piping apart. start there dude
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Old 11-03-2009, 10:02 AM   #20
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its in the shop now, i hope they find whats wrong.

UPDATE: dealer saying crank sensor is shot. hopefully this works.

Last edited by Shogokuma; 11-03-2009 at 10:02 AM. Reason: Automerged Doublepost
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Old 11-05-2009, 12:26 PM   #21
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driven for a day now seems to have work!
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