DICTIONARY OF AUTOMOTIVE TERMS - "Ia"

i:

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

IAC:

Acronym for idle air control valve

I & C systems:

Acronym for "instrumentation and control systems"

IAR:

Acronym for integral alternator/Regulator

IASCA:

Acronym for "International Auto Sound Challenge Association."

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