Catalylic convertor gurus

 Well,,on the little Nissan Frontier I picked up,,I noticed the MPG was not too swift and just kept gettin worse. It gettin bout 11 MPG now and thas a 4 cylinder with 5 speed  and gentle drivin,,!!!

  Was drivin it to go vote and the check engine light come on so I went and voted then drove to O'Reillys and they tell me the Catalytic Convertor is pluggin up,,,,WTF,,?? The dang trk only gots 145,000 miles! So, I stop at Autozone and they tell me the same thing ,,,HMMMmmm?? new convertor is $170,!!   holey CHIT,!!

 Anybody got any suggestions ,,seems like I read somewhere that you can drill into it and drain the catalyst and be good to go,,,,!! Failing that,,,any kind words of wisdom. Bye the way NM is not like californy and NO check stations,,,,

I feel yer pain Joe.

I'm a little upset my 4.9 in my brick nose 4x4 only gets 11-13. But I need to find a site where I can calculate my non stock tire size with those 31/10.50-15 tar's on there. Maybe I'm coverin more ground than the odometer says. That Nissan all stock or do you got it all jacked up where you can see Nebraska from the drivers seat?

LOL 

Yep, mine are gone and have cheater pipe in their place.

 I checked out some YouTube videos and most people use two of the spark plug non-foulers and screw them into the collar where the sensor was on pipe and that "fools" the ECM when the catalyst is rodded out or cat replaced with one of those test pipes,,,,,

 I'm gonna pull the cat in the mornin cause it gots flanges on both ends,,,,,and then,,,,and then,,,,I'll make sure and wipe off any ,,,,"Incriminatin evidence",,,,er,,,just make sure it looks unmolested,,,,,,I'm outa here,,,,,

yeah ..computer...sigh.. 99 CRV  blew out the front O2 sensor , so 'mechanic' replaced with after market one..too lazy to use old one....time passes ..engine light comes on... 'cat not rdy'..I dig into it..seems the computer 'gurus' set the trip points in the computer a tad 'fine' so you need the $$$$ O2 sensor. I tried another after market one( $20 delivered) and it was OK for awhile. Sad thing is there's NOTHING wrong with the cat( it's new), just the computer program. I timed it just right this year..got all lights off, computer happy, had E-test done( they just read computer..NOT gases coming out), so good for 2 more years.

Jay

 

 

Need to also check your state regs on doing it.

 Well,,I got under the Nissan trk this mornin and,,,,and,,,the friggin catalytic convertor has already been replaced with a piece of exhaust pipe,,,so,,WHAT THE HECK TRIGGERED THE CHECK ENGINE LIGHT?? I checked out some more YouTube videos and see where some people remove the second sensor and install TWO of the old timer "Spark Plug Non Foulers",,then reinstall the sensor in the top non-fouler after drilling it out where the sensor will fit inside the non fouler,,,Done it all like they said and fired thet mother up and ran it down the road plumb to the county line road and back just as fast as I wanted to,,,,and,,,and,,,believe you me,,that dang engine started to run smoother and smoother with more power the more I drove the piss out of it,,SO,,I done it again just for good measure,,,!! I am impressed with the difference in the engine now,,!! And the check engine light never offered to come back on,!! 

 Ole Shameless is gonna be impressed now but he won't mind that the price on the trk just went up a bit,,,and him wantin it so bad,,,