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.
2008 Honda Ridgeline RTLFACTORY OEM SERVICE PROCEDURE
Enable Conditions
ENABLE CONDITIONS
| Condition | Minimum | Maximum | |
|---|---|---|---|
| Engine coolant temperature | 156 °F (69 °C) | - | |
| Intake air temperature | 3 °F (-16 °C) | - | |
| Engine speed | 1,250 rpm | 2,150 rpm | |
| MAP value | 1,250 rpm | 54 kPa (400 mmHg, 15.8 in.Hg) | 75 kPa (570 mmHg, 22.4 in.Hg) |
| 2,000 rpm | 34 kPa (250 mmHg, 9.9 in.Hg) | ||
| Vehicle speed | 26 mph (41 km/h) | - | |
| Fuel trim | 0.73 | 1.47 | |
| Fuel feedback | Closed loop at stoichiometric | ||
| Monitoring priority | P0456, P0457, P0497 | ||
| No active DTCs | P0107, P0108, P0112, P0113, P0117, P0118, P0134, P0135, P0171, P0172, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0335, P0339, P0340, P0344, P0401, P0404, P0443, P0641, P1077, P1078, P1128, P1129, P1172, P2195, P2227, P2228, P2229, P2237, P2238, P2243, P2245, P2251, P2252, P2413, P2627, P2628, P2646, P2647, P2648, P2649, P2A00 | ||
| Other | Without excessive load change | ||
Factory Service Tools
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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.
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