Quote:
Originally Posted by SentraSE-R
I'll find out tomorrow. I suspect there will be no difference, since my 25-40 mph 4th gear P:G ratio is ~ 1:3, and my 18-32 mph 3rd gear P:G ratio is 1:5. My guess is the cat will cool below its light-up temperature with 3-5 times to cool after every pulse.
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The DFCO test will be interesting. It would also be great if you still had your grill blocks in place, since they would help protect the cat from cooling. If today's test suggests that the most rigorous EOC P&G will keep the CAT from lighting over short journeys, where would the balance be? Put another way, the test could be to see how much EOC P&G you can "get away with" and still keep the CAT lit.