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1989
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Prelude L4-1958cc SOHC
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Irregular Idle
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RPM Too Low When Warm
RPM Too Low When Warm
SYMPTOM
RPM Too Low When Warm
Check:
1.
PGM-CARB Control Unit
2.
Carburetor
a.
Idle Speed
/Mixture
b.
A/C Idle Boost
c.
Slow Air Jet Control
3.
Feedback Control
4.
Exhaust Gas Recirculation
(EGR)