© 2005-2016 Nira Control AB 3
1 Overview ................................................................................................... 5
1.1 Content of your NIRA i7x Package .................................................... 5
1.2 Glossary ............................................................................................. 6
1.3 NIRA i7x Functionality ..................................................................... 11
2 Combustion, Lambda and Measurement Principles .................................. 14
2.1 Relationship Between A/F and Lambda .......................................... 14
2.2 The Effect of Different Lambda Values ............................................ 15
2.3 Measurement Principles .................................................................. 16
2.4 Fuel delivery .................................................................................... 19
3 Installing NIRA i7x .................................................................................... 22
3.1 Crank Position Sensor (CKP) and Trigger Wheel ............................. 22
3.2 Cam Position Sensor (CMP) ............................................................. 26
3.3 Throttle Position Sensor (TPS) ......................................................... 27
3.4 Manifold Absolute Pressure (MAP) and Intake Air Temp (MAT) ...... 28
3.5 Boost pressure sensor (pre throttle pressure sensor) ....................... 29
3.6 Engine Coolant Temperature Sensor (ECT) ..................................... 29
3.7 Manifold Air Temperature Sensor (MAT) ......................................... 30
3.8 Lambda Sensor ................................................................................ 30
3.9 Exhaust Gas Temperature. .............................................................. 32
3.10 Anti Lag System (ALS) Switch .......................................................... 32
3.11 Launch Control Button .................................................................... 32
3.12 Aux Inputs ....................................................................................... 33
3.13 Ignition ............................................................................................ 33
3.14 Fuel Pressure Regulator (FPR) .......................................................... 34
3.15 Fuel Injectors .................................................................................. 34
3.16 Boost Pressure Actuator .................................................................. 35
3.17 IAC (Idle Air Control) ....................................................................... 37
3.18 Main Relay ....................................................................................... 39
3.19 Fuel Pump Relay .............................................................................. 39
3.20 Tachometer ..................................................................................... 40
3.21 ALS Solenoid ................................................................................... 40
3.22 Wheel Speed Sensors ...................................................................... 40
3.23 Aux Outputs .................................................................................... 41
3.24 Mounting NIRA i7x in the Car .......................................................... 41
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