AH FabricationsChris Nott
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  1. #1
    4th Gear

    Join Date
    Aug 2009

    Where is the IAT Sensor?

    Its the last thing that could be giving me poor MPG,

    MAF is reading fine
    CTS Replaced
    O2 sensors are reading fine on vag com.

    Only thing i can think of now is IAT so where is that lil sensor and ill give it a clean.

  2. # ADS
    Join Date
  3. #2
    Woorlord's Avatar
    shifting to Hyperspace... .

    Join Date
    Dec 2007
    Tiptree, Essex

    1 - Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-
    2 - Heated Oxygen Sensor (HO2S) -G39- 55 Nm
    3 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- 55 Nm
    4 - Combi valve for secondary air inlet
    5 - Engine Coolant Temperature (ECT) Sensor -G62-
    6 - Engine Speed (RPM) Sensor -G28-
    7 - Secondary Air Injection (AIR) Solenoid Valve -N112-
    8 - Bracket for connectors
    9 - Bracket for connectors
    10 - Electronics box (plenum chamber)
    Location for Motronic Engine Control Module (ECM) -J220- with Barometric Pressure (BARO) Sensor -F96-
    Location for Motronic Engine Control Module (ECM) Power Supply Relay -J271-
    Location for Engine Electronics Fuse -S282- for Motronic
    11 - Electronics box (plenum chamber)
    Location for Secondary Air Injection (AIR) Pump Relay -J299-
    12 - Charge Air Pressure Sensor -G31-
    13 - Throttle Valve Control Module -J338-
    14 - Intake Air Temperature (IAT) Sensor -G42-
    15 - Recirculating valve for turbocharger -N249-
    16 - Knock Sensor (KS) 1 -G61-
    17 - Knock Sensor (KS) 2 -G66-
    18 - Camshaft Position (CMP) Sensor -G40-
    19 - Fuel Injectors
    Cylinder 1 Fuel Injector -N30-
    Cylinder 2 Fuel Injector -N31-
    Cylinder 3 Fuel Injector -N32-
    Cylinder 4 Fuel Injector -N33-
    20 - Ignition Coils
    Ignition Coil 1 with Power Output Stage -N70-
    Ignition Coil 2 with Power Output Stage -N127-
    Ignition Coil 3 with Power Output Stage -N291-
    Ignition Coil 4 with Power Output Stage -N292-
    21 - Wastegate Bypass Regulator Valve -N75-
    22 - Mass Air Flow (MAF) Sensor -G70-
    23 - Secondary Air Injection (AIR) Pump Motor -V101-

    The above diagram is for a LHD vehicle but I guess you can work out the differences on that.
    2001 A4 Saloon 3.0 Quattro Sport Tiptronic - Platinum Leather/Heated Front Seats/BOSE/DIS/Cruise Control
    Retrofits:GmBH Bumpers, F&R Ambient LEDS, OEM Valeo Xenons (D2S) & Headlight Washers, Auto-dipping RVM, Footwell Lights, Vent Control illumination, ISO-Fix, RNS-E & OEM Bluetooth + VIMhack + Video i-pod & Aux inputs, Rear PDC, Powerflow 100mm Tips, Reversing Camera
    2012 A4 Saloon 2.0 TDIe Technik (163ps)
    Diagnostics:VCDS HEX+USB+CAN Cable

  4. #3
    4th Gear

    Join Date
    Aug 2009
    cheers fella



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