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Old 04-29-2009, 10:02 PM   #1
beef
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Member#: 138895
Join Date: Jan 2007
Chapter/Region: SCIC
Location: ventura
Vehicle:
2002 WRX

Default Maf...need Help

My car will not run with the MAF connected. I tried a new MAF sensor and the same thing happens. When i start the car with it connected it starts like normal and then dies. When i run it with it disconnected it gives me a CEL. The codes are p0102 ( maf or vaf a circut low input) or p0113 ( IAT sensor 1 circut high input) If i plug the MAF in while the car is running it stalls immediatly. It is not in backwards, i have tried to reset the ecu. When the car is idleing with the maf unplugged and i use the OBD2 to reset the CEL it stalls. I have tried everything i know. Please Help.
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Old 04-30-2009, 09:11 AM   #2
munkis
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Join Date: Jul 2000
Chapter/Region: Tri-State
Location: brokenmotorsports.com
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Team Broken: V6 GF
rallyarmor.com

Default

is all your intake ducting secure? Intercooler hoses etc.
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Old 04-30-2009, 09:15 AM   #3
boostdog
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Join Date: May 2007
Location: NW Arkansas
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07 wrx tr
rr tuned stg2 12.8@105mph

Default

are you 100% sure that it's not installed backwards? i had the same issue when i put my cai on and it did the same exact thing. MAF was backwards...flipped it around and runs as normal.
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Old 04-30-2009, 12:45 PM   #4
beef
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Join Date: Jan 2007
Chapter/Region: SCIC
Location: ventura
Vehicle:
2002 WRX

Default

I have a CAI and it only goes on one way. Its been like that for over 50k miles. I tried the stock airbox, and it does the same thing. I even tried plugging the MAF in not connected to the intake, and it stalls as soon as a electrical connection is made. I am thinking the problem might be in the harness. I dont see any frayed wire though. Could i have fried somthing small in my ecu?
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Old 04-30-2009, 01:34 PM   #5
hockeygm
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Location: Warwick, RI
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2003 Impreza WRX
Platinum Silver

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try cleaining your filter.
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Old 04-30-2009, 01:36 PM   #6
Subie Gal
GC84Ever
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1970 FF-1 & '70 Van
02 WRX/01 RS

Default

Quote:
Originally Posted by beef View Post
I have a CAI and it only goes on one way. Its been like that for over 50k miles. I tried the stock airbox, and it does the same thing. I even tried plugging the MAF in not connected to the intake, and it stalls as soon as a electrical connection is made. I am thinking the problem might be in the harness. I dont see any frayed wire though. Could i have fried somthing small in my ecu?
what do you mean by this?

have you altered the ECU?
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Old 04-30-2009, 03:03 PM   #7
beef
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Join Date: Jan 2007
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2002 WRX

Default

Obviously the car is tuned. But besides that i haven't messed with the ecu. What i meant by that is maybe a resistor shorted out on the ecu board.
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Old 04-30-2009, 03:17 PM   #8
HybridBoxer
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2002 WRB WRX
07 UGM STi

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Quote:
Originally Posted by munkis View Post
is all your intake ducting secure? Intercooler hoses etc.
This..

I think you're over analyzing the issue too soon. Check all of you basics first.
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