Fault diagnosis 157
•Diagnostic trouble codes P0301, P0302, P0303, P0304 (contd.)
12
DODO
0000
0000
OOC=:J
12 Final check:
- Clear the diagnostic trouble code.
- Implementation of driving cycle:
Drive the car at different engine rpm and vary-
ing loads, especially at high revs, while the en-
gine is warming up.
- Evaluation of driving cycle:
Check whether the diagnostic trouble code has
recurred.
Has the diagnostic trouble code recurred?
I YES I Proceed to page 282.
I NO I The remedial measure taken was correct.
Saab9000
-~ l]
0000
ODDO
0000
0000
0 0 C=:J
I
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