Idle Speed & Co Mixture

For further information on idle speed adjustments and specifications, see the ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS

Application

RPM

B16A2 Engine

⁽¹⁾⁽²⁾⁽³⁾ 400-500

⁽¹⁾⁽²⁾⁽⁴⁾ 650-750

⁽¹⁾⁽²⁾⁽⁵⁾ 700-800

⁽¹⁾⁽²⁾⁽⁶⁾ 760-860

D16Y7 A/T Engine

⁽¹⁾⁽²⁾⁽⁷⁾ 650-750

⁽¹⁾⁽²⁾⁽⁶⁾ 760-860

D16Y7 M/T Engine

⁽¹⁾⁽²⁾⁽⁷⁾ 620-720

⁽¹⁾⁽²⁾⁽⁶⁾ 760-860

D16Y8 A/T Engine

⁽¹⁾⁽²⁾⁽⁷⁾ 650-750

⁽¹⁾⁽²⁾⁽⁶⁾ 760-860

D16Y8 M/T Engine

⁽¹⁾⁽²⁾⁽³⁾ 400-500

⁽¹⁾⁽²⁾⁽⁴⁾ 620-720

⁽¹⁾⁽²⁾⁽⁵⁾ 700-800

⁽¹⁾⁽²⁾⁽⁶⁾ 760-860

⁽¹⁾	USA models.

⁽²⁾	Canadian models.

⁽³⁾	With Idle Air Control (IAC) valve disconnected, transmission in Neutral or Park and no load (headlights, blower motor, rear defogger, A/C and cooling fan off). On Canadian models, set parking brake and ensure headlights are off.

⁽⁴⁾

Turn ignition off and reset PCM by removing BACK UP (7.5-amp) fuse, located in underhood fuse/relay box for 10 seconds. With Idle Air Control (IAC) valve connected, transmission in Neutral or Park and no load (headlights, blower motor, rear defogger, A/C and cooling fan off). On Canadian models, set parking brake and ensure headlights are off.

⁽⁵⁾	Check after one minute with headlights on low.

⁽⁶⁾	Turn headlights off and check after one minute with blower motor on HIGH and A/C on.

⁽⁷⁾	Check with Idle Air Control (IAC) valve and Intake Air Temperature (IAT) sensor connected, transmission in Neutral or Park and no load (headlights, blower motor, rear defogger, A/C and cooling fan off). On Canadian models, set parking brake. Ensure headlights are off.

IDLE CO LEVEL

Application	Maximum CO Level
Civic Del Sol	0.1%