cats
#1
Teching In
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cats
The cats just blew apart on my truck, and I was wondering about just running a straight pipe instead of replacing them.. anything need to be down to stop the computer from throwing a code?
(and I just looked for a solid half hour on here to no avail)
(and I just looked for a solid half hour on here to no avail)
Last edited by 04-4x4; 08-06-2011 at 06:34 PM. Reason: Parenthesis
#2
PT's Slowest Truck
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Yep, you need to have the PCM tuned to turn off the catalyst inefficiency and over temp codes. If you have tuning software like EFILive or HPTuners you can do it yourself, if not, one of our sponsors such as BlackBear or Wheatley can do it for you (links to the right>>>>
Might as well get a complete custom tune while your at it
Might as well get a complete custom tune while your at it
#5
TECH Fanatic
You don't even need to replace the pipe. They are pretty easy to gut once broken. Just get a plasma cutter and cut a 1.5" hole in the front edge, hammer out the insides, and weld back up. As long as you do it neatly, it looks like you've still got cats on the truck for emissions inspection.
#6
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Another question (sorry if it is on here already)
but I gutted the cats (thanks for the idea suburbazine) and after about 10-15 minutes of driving down the highway, it puts the motor into derate mode, can't go faster than 30 mph. Is something else wrong with her or?
Thanks
but I gutted the cats (thanks for the idea suburbazine) and after about 10-15 minutes of driving down the highway, it puts the motor into derate mode, can't go faster than 30 mph. Is something else wrong with her or?
Thanks
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#9
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Another question (sorry if it is on here already)
but I gutted the cats (thanks for the idea suburbazine) and after about 10-15 minutes of driving down the highway, it puts the motor into derate mode, can't go faster than 30 mph. Is something else wrong with her or?
Thanks
but I gutted the cats (thanks for the idea suburbazine) and after about 10-15 minutes of driving down the highway, it puts the motor into derate mode, can't go faster than 30 mph. Is something else wrong with her or?
Thanks
Hmm strange? Did you get like the reduced engine power message or something?
#10
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once the CEL comes on it won't rev past 1500 rpm and it losses all kindas of power. If the CEL doesn't come on, it's fine. it seems, right around the time the cats should be warmed up to running temp it does that.