i

Short form for injection indicating that the engine is fuel-injected, e.g., GTi, EFi, 1.6i, SSEi

I2R Loss

Power loss due to the current (I) flow through the resistance (R) of a conductor.

IA

Acronym for Intake Air

IAC

Acronym for Idle air control valve

IACV

Acronym for Idle Air Control Valve

I & C systems

Acronym for instrumentation and control systems

IAR

Acronym for Integral alternator/Regulator

IAS

Acronym for Inlet Air Solenoid (Ford)

IASCA

Acronym for International Auto Sound Challenge Association.

IAT

Acronym for Intake Air Temperature

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