Ralloking Posted June 5, 2020 Share Posted June 5, 2020 Hi, I have the problem that the CO value is too high when idling ~ 7% (max. 3.5% allowed). Otherwise the engine runs very well, the spark plugs also look good, as does the petrol consumption. Can you set something on the carburetor 2150 FB that makes the mixture lean when idling? Or what else can it be (lambda probe, catalyst blocked?) Thank you Ralph Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted June 5, 2020 Share Posted June 5, 2020 Hello Ralph! Do you know if your A.I.R. injection pump is working correctly and that the bypass valve is closed? These trucks use air injected after the combustion cycle to "burn off" excess CO Link to comment Share on other sites More sharing options...
Ralloking Posted June 5, 2020 Author Share Posted June 5, 2020 Hello Ralph! Do you know if your A.I.R. injection pump is working correctly and that the bypass valve is closed? These trucks use air injected after the combustion cycle to "burn off" excess CO OK! I will check airflow. Thanx Link to comment Share on other sites More sharing options...
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