Honda 2004 Odyssey, Service Manual

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Ｓ０Ｘ４Ａ００Ｋ７７１０００９０３００ＦＡＡＴ００
DTC P0300:
DTC P0301:
DTC P0302:
DTC P0303:
DTC P0304:
DTC P0305:
DTC P0306:
Symptom Procedure(s) Also check for:
11-133
Random misfire and any combination of the following:
No. 1 Cylinder Misfire Detected
No. 2 Cylinder Misfire Detected
No. 3 Cylinder Misfire Detected
No. 4 Cylinder Misfire Detected
No. 5 Cylinder Misfire Detected
No. 6 Cylinder Misfire Detected
NOTE:
• If the misfiring is frequent enough to trigger detection of increased emissions during two consecutive driving cycles,
the MIL will come on, and DTC P0300 (and some combination of P0301 through P0306) will be stored.
• If the misfiring is frequent enough to damage the catalyst, the MIL will blink whenever the misfiring occurs, and DTC
P0300 (and some combination of P0301 through P0306) will be stored. When the misfiring stops, the MIL will remain
on.
1. Troubleshoot the following DTCs first if any of them were stored along with the random misfire DTC(s):
P0107, P0108, P1128, P1129: Manifold Absolute Pressure (MAP) Sensor
P0131, P0132: Primary Heated Oxygen Sensor (Primary HO2S)
P0171, P0172: Fuel System
P0335, P0336: Crankshaft Position (CKP) Sensor
P0340, P0341, P0365, P0366: Camshaft Position (CMP) Sensor A/B (’03-04 models)
P0401, P1491, P1498: Exhaust Gas Recirculation (EGR) System
P0505: Idle Control System
P1259: VTEC System
P1361, P1362, P1366, P1367: Top Dead Center (TDC) 1/Top Dead Center (TDC) 2 Sensor (’99-02 models)
P1519: Idle Air Control (IAC) Valve
2. Test-drive the vehicle to verify the symptom.
3. Find the symptom in the chart below, and do the related procedures in the order listed until you find the cause.
•
•
• Random misfire only
at low RPM and
under load Check fuel pressure (see page 11-216). Low compression.
Low quality fuel.
Correct EGR valve
function.
Random misfire only
during acceleration Check fuel pressure (see page 11-216). Malfunction in the
VTEC system (see
page 6-12).
Random misfire at
high RPM and load,
or under random
conditions Check fuel pressure (see page 11-216). Correct valve
clearance (see page
6-15).
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