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      01-15-2014, 12:49 PM   #1
leebermeister
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2AAC variable suction unit 2

Hello all. I did a recent scan due to some missing which pointed to the #1 cylinder. Swaped coil. No biggie. however, There were some other error codes which i have never seen before. I did a search and did not find anythnig that provided insight on this. I dont think this is related to the bad coil.

Could this error code be related to the DISA valve on my 3 stage intake?

2AAC:
2AAC variable suction unit 2, self diagnosis
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1
Odometer
139928kms
86947miles
Voltage terminal 87
14.22
V
engine-speed
1,664.00
rpm
Air mass calculated
113.94
mg/stk
Ambient temperature
13.50
C

Event 2
Odometer
140048kms
87021miles
Voltage terminal 87
13.91
V
engine-speed
3,328.00
rpm
Air mass calculated
385.24
mg/stk
Ambient temperature
21.75
C

Event 3
Odometer
140992kms
87608miles
Voltage terminal 87
13.71
V
engine-speed
2,752.00
rpm
Air mass calculated
70.54
mg/stk
Ambient temperature
15.75
C


Thanks

Last edited by leebermeister; 01-15-2014 at 06:43 PM.
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      08-18-2018, 02:38 PM   #2
Richwm
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I am now showing the same fault did you ever figure out what it means?
Here is my freeze frame data its similar just lower RPM and a lot more miles.

2AAC
2AAC variable suction unit 2, self diagnosis
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1Odometer 358848kms 222977miles
Voltage terminal 87 13.61 V
engine-speed 2,816.00 rpm
Air mass calculated 108.52 mg/stk
Ambient temperature 8.25 C

Event 2Odometer 358920kms 223022miles
Voltage terminal 87 13.71 V
engine-speed 2,496.00 rpm
Air mass calculated 396.09 mg/stk
Ambient temperature 24.00 C

Event 3Odometer 365208kms 226929miles
Voltage terminal 87 13.41 V
engine-speed 2,368.00 rpm
Air mass calculated 162.78 mg/stk
Ambient temperature 36.75 C
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      08-18-2018, 04:06 PM   #3
freedomfries
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Had the exact same code on my used 3IM and the motor was faulty in the small DISA valve

https://www.e90post.com/forums/showthread.php?t=1491906
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