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deleted cats
Hey guys I have an 03 tahoe and deleted my cats. Now I am getting codes 420 and 430 exhaust catalyst below threshhold, bank 1 and bank 2. Before I cut them out I was getting the 420 code for bank one. I was going to replace the o2 sensors but I don't want to if the free flow exhaust is just...- jhoodlum77
- Thread
- Replies: 2
- Forum: General Discussion
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J
Idle
I'm in the dark on this one. Sometimes when I let off the throttle to slow down the rpm drops below 500 and the voltage meter drops to about 10. If I happen to be taking a somewhat tight turn at low speeds it will stall. Any help would be great.- jhoodlum77
- Thread
- Replies: 1
- Forum: Tech Info
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J
engine codes
I was getting an engine code 420. Cat effic below threshhold bank 1. A few people said the cat was getting plugged. I removed both cats and now get a code on both bank 1 and 2. Anyone have any answers?- jhoodlum77
- Thread
- Replies: 0
- Forum: Tech Info
