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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #26  
Old 03-23-2009
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Sounds good. Did it have a 02 after the cats? Or third cat?
If so.. I wouldn't be supprised if sooner or later it throws a CEL. Guys who try to use sims often get CEL too.

Not sure what year that escape is.. I do know that 05+ is CAN. (just random info)

btw, I'm supprised that at only 90k the cats were bad. There must be something else causing it? Either leaded fuel.. or?

Rich
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  #27  
Old 03-24-2009
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Quote:
Sounds good. Did it have a 02 after the cats? Or third cat?
o2's after the precats - I mean, its obd2... no sensor after 3rd cat, not monitored.

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If so.. I wouldn't be supprised if sooner or later it throws a CEL. Guys who try to use sims often get CEL too.
sims dont work like the fouler trick, I've had a fouler on my evo since 1000 miles, I now have 14000 miles, no codes.

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Not sure what year that escape is.. I do know that 05+ is CAN. (just random info)
it is 05
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btw, I'm supprised that at only 90k the cats were bad. There must be something else causing it? Either leaded fuel.. or?
Like I was saying, the computer wasnt firing the coils = mega rich fail

the cats were burning the fuel, not the engine.
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  #28  
Old 03-25-2009
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Originally Posted by Jp7 View Post
o2's after the precats - I mean, its obd2... no sensor after 3rd cat, not monitored.
Maybe I'm just mis-understanding your thoughts.... but many OBD2 cars/trucks have 02s after the cats. My ranger does. My milan does, my eldo did, ect... They are generally heated 02s as well.

If there is more than one cat in series it's a "ULV" emission vehicle. Meaning there are two cats (or more) to change the exhuast emissions. To the best of my knowledge, there are no "pre-cats". Only multiple cats to meet gov standards for ultra low emission status.

Iv'e "heard" of those extenders working.. and not working. I guess each case just depends.

Personally I don't believe in global warming caused by mankind. And I think catalitic convertors do help to less polute our air. That just makes common sense.
So.. I'm for daily driver cars having them. But if the owner wants to get rid of them? IMO it ought to be legal to do so. Different topic for a different thread I reckon.

Rich
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