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97 5.7L Vortec: can I delete the post-cat OXYGEN SENSORS without much headache? (non-emissions test)

Well, that's about as clear-cut evidence as anyone can ever hope to hear for the simulators! I'm a little curious how long the simulators without the honeycomb material would have worked... but I think it's safe to say it'd be not as long, not as well, or not at all. Also curious if those who...
- Rayfer
- Post #14
- Jun 6, 2018
- Forum: 96+ Vortec Performance + Computer Swaps
97 5.7L Vortec: can I delete the post-cat OXYGEN SENSORS without much headache? (non-emissions test)

Kenny, I believe the ones Miroslav has are indeed discontinued, as the "HELP" brand spark plug non-foulers grew more and more popular for this purpose, and the folks who made them were having a harder and harder time making a profit (or, perhaps I should say the folks selling them were having a...
- Rayfer
- Post #12
- Jun 3, 2018
- Forum: 96+ Vortec Performance + Computer Swaps
97 5.7L Vortec: can I delete the post-cat OXYGEN SENSORS without much headache? (non-emissions test)

MUCH THANKS df2x4 and Kenny...have been reading more and this is *definitely* the way I want to go. ...and then the wife chimes in with "what if we want to sell the Suburban someday, and the buyer lives in the next county over with emissions-inspection testing"? My response: We Will Never...
- Rayfer
- Post #7
- May 25, 2018
- Forum: 96+ Vortec Performance + Computer Swaps
97 5.7L Vortec: can I delete the post-cat OXYGEN SENSORS without much headache? (non-emissions test)

Thanks for the quick reply...just checked out their website. Looks like a good option. :-)
- Rayfer
- Post #4
- May 23, 2018
- Forum: 96+ Vortec Performance + Computer Swaps
97 5.7L Vortec: can I delete the post-cat OXYGEN SENSORS without much headache? (non-emissions test)

Turns out a Google search turned up some threads (on several forums) which didn't show up in each forums' own search function. I may be looking at a custom tune, where the ECM is programmed to not read the signal from the rear O2 sensors. If that's the case, forgive my ignorance, is that...
- Rayfer
- Post #2
- May 23, 2018
- Forum: 96+ Vortec Performance + Computer Swaps
97 5.7L Vortec: can I delete the post-cat OXYGEN SENSORS without much headache? (non-emissions test)

Quick summary: 1997 GMC Suburban, 5.7L Vortec, 2wd automatic, 207k mi, runs like new. Both catalytic converters are shot. I learned this after replacing all four heated oxygen sensors (two tested bad, other two tested good, but figured it'd be better to replace all four at once). I live in a...
- Rayfer
- Thread
- May 23, 2018
- Replies: 14
- Forum: 96+ Vortec Performance + Computer Swaps