W203 C230K Sport Coupe mod.03 OBD Code: P0137 - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 04-12-2009, 01:45 PM Thread Starter
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W203 C230K Sport Coupe mod.03 OBD Code: P0137

W203 C230K Sport Coupe mod.03 has about 20000 mils in best conditions.
Sparkplugs,Air and fuel filters are new
At first I changed the after cat O2 sensor (OEM).After the test drive(10-15 mils) having the same code P0137 /check engine light.
I changed also to cam sensors (with oil leak) and also installed the cable upgrade recomended from the MB Factory! Many times cleaned the connectors(with contact cleaner) from ECU,cam sensors,Os sensors before/after cat.
Still having the same problem.
Could you help me with any idea or tip?
Thx in advance
makan911 is offline  
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