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Dekoding av alle feilkodene tilsier:
P1301
Cylinder 1(gjelder for alle) Misfire Detected. Catalyst Damaging.
Fault symptoms
CHECK ENGINE.
Running unevenly and misfiring.
On-Board Diagnostics
Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.
Enable criteria:
- Overall conditions for this DTC: Atmospheric pressure must exceed 78 kPa, coolant and intake air temperatures must exceed
-7°C.
- Engine running. Main relay voltage exceeding 10V. Ignition discharge module combustion signals registering. The number of
missing combustion signals is accumulated for each cylinder every 200 engine revolutions. The total number of accepted
misfires during 200 engine revolutions is specified in a load and engine speed-dependent matrix.
Fault criteria:
- Number of missing combustions exceeding number of accepted misfires.
Dependents:
- P1312 and P1334.
9-5 / 2. Engine / Trionic, 4-cyl OBDII
P1301
Fault diagnosis, diagnostic trouble codes
Reference : S25167 30.12.2008 Page 1 of 2
System reaction to a fault:
- Under high engine loads, closed loop will be blocked while misfiring occurs.
OK report:
- Provided the fault criteria have not been fulfilled during the driving cycle, an OK report will be given when the ignition is
turned off but before the engine stops. Two kinds of OK report can be given: Type 1: If a DTC is already present for the
diagnosis and the same operating conditions have occurred (coolant temperature over or under 71°C, engine speed ±375
rpm and load ±10%). Type 2: If a DTC is not already present for the diagnosis or the same operating conditions have not
occurred.
Fault handling: (See Fault diagnosis, general for more information.)
- Type I.
Diagnostic help
If any other trouble codes have been generated, check whether fault diagnosis should be started on any of them first. Read
Freeze Frame and change spark plugs.
Then check the compression, ignition and injector for the relevant cylinder.
Functions in the diagnostic tool related to the fault:
Diagnostic status for the diagnosis.
Misfire counter for the relevant cylinder.
Activating misfire counter reset.
Activating ignition trigger for relevant cylinder.
Activating injector test for relevant cylinder.
See also the description of activations under Fault diagnosis, general for more information.
Checking the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the
multimeter, diagnostic tool or test lamp during the check.
9-5 / 1999 / 2. Engine / Trionic, 4-cyl OBDII
P1301
Fault diagnosis, diagnostic trouble codes