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Ecu maf sensor, need help!

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Old Mar 27, 2012 | 06:00 AM
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nick9g4b1's Avatar
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From: Chicago
Ecu maf sensor, need help!

Off the ECU, where is the MAF sensor wire located? Just installed the APEXi AFC NEO. Only wire I can't find is the MASS AIR FLOW SENSOR WIRE! NEED HELP! ***'09 ES***

Everything is working fine, I am just NOT able to adjust any settings like A/F ratios ect. If someone knows the ECU pinout schematic for the 2009 ES, get at me ASAP! Thanks.
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Old Mar 29, 2012 | 12:52 PM
  #2  
Yves914's Avatar
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From: Belgium
If i'm not mistaken this is the Whole list, i Got this thing when i orderd my openport 2.0 a while back.

Don't know if there is a difference in the EU models vs the US models so could be mistaken.

Mitsubishi 2007+ Diagnostics (EvoX / RalliArt / Lancer, etc):
1
2
3
4 Ground (chassis negative)
5 Ground (chassis negative)
6 CAN Bus High << Important for Diagnostics and Reflashing connection (EFI ECU pin 90)
7 EFI << only used for recovery mode reflashing. no diagnostics on this pin since CAN Bus introduced. (EFI ECU pin 80)
8 Reflash EEPROM Init Voltage (EFI ECU pin 103) << connect OpenPort 2.0 (pin12) direct to EFI Eci pin 103 for recovery mode reflash.
9
10
11
12
13
14 CAN Bus Low << Important for Diagnostics and Reflashing connection (EFI ECU pin 91)
15
16 Power Supply (+12V)

And the complete list if any1 needs it:

MITSUBISHI OBDII PORT PINOUTS:
1 EFI/ABS/AYC/ACD (not used for Evo7+ EFI Diagnostics) join this pin to Ground (pin4 or 5) with a paper clip to get self diagnosis flashing lights on the dash to read the trouble codes by way of Long (+10s) and short (+1s) flashing lights.
<< Pin1 Very important for mitsubishi diagnostics, ensure this is connected to EFI ECU pin 56 (evo4-8).
2 J1850 (+) line (not used on Mitsubishi)
3 Suspension - ECS
4 Ground (chassis negative)
5 Ground (chassis negative)
6 Transmission - ELC-4/5AT
7 EFI/ABS/AYC/ACD К-Line (ISO 9141)
<< Pin7 Very important for diagnostics, ensure this is connected to EFI ECU pin 85(evo9) or pin 62(evo4-8).
8 ABS
9 ETACS: Pulse signal only (pin9 not needed for Mitsubishi OpenPort)
10 J1850 (-) line (not used on Mitsubishi)
11 Air Conditioner - Full Auto AC
12 Air Bag – SRS
13 Cruise Control – ASC
14 Rear Diff - AYC (or Vehicle speed signal)
15 L-line (ISO 9141) (not used on Mitsubishi)
16 Power Supply (+12V)
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