Mass Air Flow Sensor problem
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my1990300zx
- Posts: 29
- Joined: Thu Apr 09, 2015 7:19 am
- Car: 1990 300zx non turbo 2+2
- Location: San Francisco
Mass Air Flow Sensor problem
I was checking my Mass Air Flow Sensor unit , all i did was taking off looked at it put it back on and now my engine is freaking out . The idle is out of control up and down and i cant drive m also getting a code 12 on my ecu, there cant be anything wrong with it I never touch in it in 20 years i own the car What happen ?
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PapaSmurf2k3
- Site Admin
- Posts: 19003
- Joined: Thu Nov 21, 2002 3:20 pm
- Car: 2017 Corvette, 2018 Focus ST, 1993 240sx truck KA Turbo.
- Location: Merrimack, NH
Re: Mass Air Flow Sensor problem
Did you not re-hook the connector up properly? Or is there a big vacuum leak somewhere?
Re: Mass Air Flow Sensor problem
BumpPapaSmurf2k3 wrote:Did you not re-hook the connector up properly? Or is there a big vacuum leak somewhere?
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DCaff300ZX
- Posts: 4202
- Joined: Sun Jun 14, 2009 8:18 am
- Car: .
1993 CRP TT- Modified - Location: Tacoma, Washington
Re: Mass Air Flow Sensor problem
Check the connector for corrosion, and make sure that pushing it back on that you didn't disturb a hose clamp/loosen something accidentally. Also, do you have a cone filter or the OEM box? Re-installing the OEM box can sometimes end up with an intake hose open/vacuum leak...worth a check!
Also, using some MAF cleaner surely can't hurt if you have never had it off before as you said.
Also, using some MAF cleaner surely can't hurt if you have never had it off before as you said.