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On-Board Catalyst Monitoring, IR, etc.
Posted to Technical Theory Forum on 9/15/2003 11 Replies

Hi, all:

Regarding on-board CAT monitoring, Switch Ratio (SR) method is already clear. Index Ratio (IR) method is a FAQ (as frequent as one); I was really bothered by it, so started digging on it, still working it.

Seems to me, lately, Ford wasn't really h... Login to read more.

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