Idle Speed & Ignition Timing

Download the full database via torrent (~1.1 TB) | Download Brad's custom LEMON patches

Ensure idle speed and ignition timing are set to specification. For adjustment procedures, see ADJUSTMENTS article in this section.

IDLE SPEED SPECIFICATIONS ⁽¹⁾

Application

RPM

Civic

1.5L

575-675

1.6L

500-600

After ECU Reset

1.5L

No Load

700-800

Under Load

760-860

1.6L

No Load

700-800

Under Load

2WD

760-860

4WD

M/T

760-860

A/T

780-880

CRX

1.5L PFI

450-550

1.5L TBI

575-675

1.6L PFI

500-600

After ECU Reset

1.5L PFI

No Load

California

600-700

Federal

550-650

Under Load

700-800

1.5L TBI & 1.6L PFI

No Load

700-800

Under Load

760-860

⁽¹⁾	Idle speed is set at operating temperature with headlights and cooling fan off and automatic transmission in Drive.

IGNITION TIMING (Degrees BTDC@RPM)

Application

Setting

Civic

16-20@700-800

CRX

1.5L PFI

⁽¹⁾ 12-16@550-650

1.5L TBI

16-20@675-775

1.6L PFI

16-20@700-800

⁽¹⁾	600-700 RPM on California vehicles.