Chrysler PT Cruiser 2001 Service Manual Supplement page 2628

DRIVEABILITY - GAS
Symptom:
P1390-TIMING BELT SKIPPED 1 TOOTH OR MORE
When Monitored and Set Condition:
P1390-TIMING BELT SKIPPED 1 TOOTH OR MORE
When Monitored: With the engine running, every 44 ms an inhibit condition is looked for
(wide open throttle, large change in rpm, large change in MAP, cold engine, insufficient
start to run time, rpm outside of given windows).
Set Condition: If an inhibit condition does not exist, the misalignment between the
camshaft and the crankshaft is monitored. When the camshaft position sensor is offset
from the crankshaft position sensor one tooth or more.
VALVE TIMING NOT OUT OF SPECS
VALVE TIMING OUT OF SPECIFICATION
TEST
1 Note: The PCM has detected the Cam and Crank are out of sync.
Using the appropriate service information check the valve timing.
Is the valve timing within specifications?
Yes → Perform Re-Learn Cam/Crank function with the DRB under
→ Repair valve timing as necessary. After performing the repair, use
No
POSSIBLE CAUSES
ACTION
Engine, Misc.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
the DRB under Engine, Misc. and do Re-Learn Cam/Crank.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
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APPLICABILITY
All