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Old 04-11-2019, 09:59 PM   #1
ex-x-fire
 
Drives: 2010 yaris 3 door hatch
Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
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I've had bad maf sensors on cars, they actually ran better with the maf unplugged. You can try unplugging it and take it for a ride.
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Old 04-12-2019, 11:29 AM   #2
Faulteh
 
Drives: 2008 Yaris Manual
Join Date: Apr 2019
Location: Canada
Posts: 11
Quote:
Originally Posted by ex-x-fire View Post
I've had bad maf sensors on cars, they actually ran better with the maf unplugged. You can try unplugging it and take it for a ride.
if I unplug it. The car will not start.

I took it for a drive today, on the off chance the CEL light would come on. It did not, but it was starting to miss, so I figured I'd pull over, and look at some stuff.

I pulled over and popped the hood. I had turned the car off through force of habit and when I tried to start it.. Engine would crank and crank but never fire up.

So, it had done this 1 other time. So I just let it sit for 5 minutes. After that it would start. So I figured, ok, lets take it for a ride with the MAF unplugged.

I unplugged the MAF sensor and started it up. It would seem to start, then the TAC would drop to 0 and the engine would stop.

Plug the MAF back in, and it started. (did this twice to confirm it wasn't a fluke)

Drove it home.....
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Old 04-12-2019, 02:16 PM   #3
IllusionX
It's the illusion you see
 
Drives: 07 Yaris Sedan Aero
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Location: Brossard, QC
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Quote:
Originally Posted by Faulteh View Post
if I unplug it. The car will not start.



I took it for a drive today, on the off chance the CEL light would come on. It did not, but it was starting to miss, so I figured I'd pull over, and look at some stuff.



I pulled over and popped the hood. I had turned the car off through force of habit and when I tried to start it.. Engine would crank and crank but never fire up.



So, it had done this 1 other time. So I just let it sit for 5 minutes. After that it would start. So I figured, ok, lets take it for a ride with the MAF unplugged.



I unplugged the MAF sensor and started it up. It would seem to start, then the TAC would drop to 0 and the engine would stop.



Plug the MAF back in, and it started. (did this twice to confirm it wasn't a fluke)



Drove it home.....
Where in Canada are you located?

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Old 04-12-2019, 02:32 PM   #4
Faulteh
 
Drives: 2008 Yaris Manual
Join Date: Apr 2019
Location: Canada
Posts: 11
Saint John NB
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