Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHONDA1991ACCORD DX, 2D COUPE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROLS - SPECIFICATIONSFUEL SYSTEMIDLE SPEED & CO MIXTURE
1991 Honda Accord DX, 2D Coupe, Standard
Idle Speed & Co Mixture
1991 Honda Accord DX, 2D Coupe, StandardSECTION Idle Speed & Co Mixture
IDLE SPEED SPECIFICATIONS (1)
| Application | RPM | |||||||
|---|---|---|---|---|---|---|---|---|
| Accord | ||||||||
| All Models | 550-650 | |||||||
| After ECU Reset | ||||||||
| No Load | 700-800 | |||||||
| Under Load | 720-820 | |||||||
| 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 | ||||||||
| Manual | 760-860 | |||||||
| Automatic | 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 | |||||||
| Prelude | ||||||||
| 1.6L | 600-700 | |||||||
| After ECU Reset | 720-820 | |||||||
|
||||||||
IDLE CO LEVEL
| Application | CO Level |
|---|---|
| All Models | 0.1% |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.