The effect of MMT on the OBD-II catalyst efficiency monitor has been investigated. The results conclusively show that manganese which is deposited onto the catalyst during the combustion of MMT- containing fuel provides for an increased level of catalyst oxygen storage capacity. This added oxygen storage was found to result in a reduced rear EGO sensor response and caused malfunctioning catalysts to be incorrectly diagnosed by the OBD-II catalyst efficiency monitor.
The Effect of MMT on the OBD-11 Catalyst Efficiency Monitor
Sae Technical Papers
International Fuels & Lubricants Meeting & Exposition ; 1993
1993-10-01
Aufsatz (Konferenz)
Englisch
Monitor package tracks efficiency degradation
Online Contents | 2008
Monitor package tracks efficiency degradation
Online Contents | 2008
The effect of fuel sulfur on the OBD-II catalyst monitor
Kraftfahrwesen | 1997
|The Effect of Fuel Sulfur on the OBD-II Catalyst Monitor
SAE Technical Papers | 1997
|The Effect of Fuel Sulfur on the OBD-II Catalyst Monitor
British Library Conference Proceedings | 1997
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