I hooked up a computer two weeks ago when it started,and there were no
codes. My girlfriend said the check engine light blinked a few times on her
way to work, so I'll check again. Haven't seen the light come on since.
I'll check again this week.
No codes. I was able to get the engine light blink a few times. I was
accelerating from stop, and the engine was hesitating, kind of boggin down.
I floored it and after about two seconds the engine light blinked 5 or 6
times. After about 5 seconds the engine started responding properly and the
engine like went away. No codes were saved.
in that case, look into the ignition switch. for your model year, there
was a recall because the switched burnt out - and symptoms were odd, but
left no code like you describe. it's particularly bad if you have a
heavy key ring. try using the key on its own and making sure you
manually return the key fully to the "run" position after cranking
rather than letting it turn back with just the spring. the spring's not
very strong, and particularly with a heavy key ring, the contacts only
partially engage, overheat, and burn out. and of course, replace the
ignition switch if this turns out to be the cause.
I was finally able to get the check engine light to stay on and codes to be
saved. They're missfire codes and it turns out the misfire monitor requires
2 consecutive trips to trigger the DTC.
The codes are P0303 (Cylinder 3 misfire) and P1399 (Random/Multiple
Reported data is as follows:
Report Date: 4-16-2007 (8:34 PM)
Vehicle Year: 2000
Vehicle Make: Honda
Vehicle Model: Civic (SIR)
Vehicle Engine Size: 1.6L
Vehicle License Plate:
Vehicle Mileage: 1230000
P0303 Cylinder 3 Misfire Detected
P1399 Random / Multiple Cylinder Misfire Detected
MisFire Monitor Complete
Fuel System Monitor Complete
Comprehensive Component Monitor Complete
Catalyst Monitor Complete
Heated Catalyst Monitor Not Supported
Evaporative System Monitor Complete
Secondary Air System Monitor Not Supported
A/C System Refrigerant Monitor Not Supported
Oxygen Sensor Monitor Complete
Oxygen Sensor Heater Monitor Complete
EGR System Monitor Not Supported
DTC for which Freeze Frame was Stored P0303
Fuel System 1 Status Open Loop - due to driving conditions
Fuel System 2 Status Not Supported
Calculated LOAD Value 94.12 %
Engine Coolant Temp 138.20 °F
Short Term Fuel Trim - Bank 1 0.00 %
Long Term Fuel Trim - Bank 1 -4.69 %
Intake Manifold Absolute Pressure 28.05 inHg
Engine RPM 3256 rpm
Vehicle Speed Sensor 32.93 mph
Intake Air Temperature 59.00 °F
Absolute Throttle Position 92.55 %
check the ignition componentry [distributor cap, rotor, leads and plugs]
and ensure its in good condition - if old, suggest replacement as a
precaution. random misfire on all cylinders can be multiple problems,
but misfire on #3 is injector or ignition componentry. injector cleaner
might be a good idea too.
that's consistent, particularly with aged plugs. for spark plugs, the
sparking voltage depends on the gas pressure, composition, etc in the
cylinder. if the plug is leaking slightly [electrically] or the
electrodes are worn, it may spark at one cylinder condition, but not at
the other. same can go for aged distributor caps/rotors.
Good call, turns out I was able to fix the problem simply by changing the
plugs. The old ones didn't even look that bad. Glad I didn't take it into
honda, the honda dealership here is terrible, I'd be surprised if it would
have came to less than $200 or $300 by the time they got through with it.
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