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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Exhaust and Cutouts Discussion [GEN 1]
Supercharged Cat Delete
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<blockquote data-quote="FordTechOne" data-source="post: 1807103" data-attributes="member: 35543"><p>It depends on the vehicle and year. Catalyst monitoring requirements and strategies are far more stringent on modern vehicles than those from the 90’s/00’s. One monitoring strategy overfuels a bank of cylinders and then compares the values between the upstream and downstream O2s. If the downstream does not provide the expected values (due to no cat and being spaced out of the exhaust stream) then catalyst efficiency DTCs will set.</p></blockquote><p></p>
[QUOTE="FordTechOne, post: 1807103, member: 35543"] It depends on the vehicle and year. Catalyst monitoring requirements and strategies are far more stringent on modern vehicles than those from the 90’s/00’s. One monitoring strategy overfuels a bank of cylinders and then compares the values between the upstream and downstream O2s. If the downstream does not provide the expected values (due to no cat and being spaced out of the exhaust stream) then catalyst efficiency DTCs will set. [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Exhaust and Cutouts Discussion [GEN 1]
Supercharged Cat Delete
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