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Check Engine<br />
(Emission Control)<br />
Warning Light<br />
The emission control system detects malfunctions<br />
early that could, for example, cause increased<br />
pollutant emissions or consequential damage.<br />
Faults are indicated by a continuously lit or<br />
flashing instrument panel warning light.<br />
The faults are recorded in the control unit's fault<br />
memory.<br />
The warning light in the instrument panel lights up<br />
when the ignition is switched on as a bulb check<br />
and goes out approx. 4 seconds after the engine<br />
starts. If the warning light does not light up, have<br />
the bulb replaced promptly.<br />
The warning light in the instrument panel flashes to<br />
indicate operating states (e.g. engine misfiring)<br />
which might cause damage to certain parts of the<br />
emission control system.<br />
f In this case, immediately reduce the engine<br />
load by easing off the accelerator.<br />
f In order to avoid consequential damage to the<br />
engine or emission control system (e.g. catalytic<br />
converter), have the fault diagnosed and<br />
rectified immediately at the nearest authorized<br />
Porsche dealer.<br />
If the warning light in the instrument panel lights up<br />
permanently without flashing before and remains<br />
on while driving, it suggests:<br />
– a potential engine control problem and the<br />
need for system service or<br />
– an improperly fastened tank cap or<br />
– the vehicle was refueled while the engine was<br />
running.<br />
f Stop immediately at a suitable and secure<br />
place and check tank cap for proper fastening.<br />
If tank cap was fastened correctly, see your authorized<br />
Porsche dealer for service as soon as<br />
possible.<br />
Caution!<br />
If the check engine warning light in the instrument<br />
panel is flashing, serious catalytic<br />
converter damage and power loss will soon<br />
occur.<br />
Prolonged driving with the check engine warning<br />
light on could cause damage to the<br />
emission control system. It also could affect<br />
fuel economy and driveability.<br />
f Have the fault remedied at the nearest<br />
authorized Porsche dealer immediately.<br />
Instruments, On-Board Computer, Warnings 133