Question about Code P0420

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#11

08-03-2010, 05:17 PM

Dano01

Starting Member

Thread Starter

Join Date: Jun 2010

Posts: 104

I plane on doing plugs, wires, cap here soon.

I belive I may have found my problem to the code P0420. I was looking at one of the o2 sensors and the plug that come from the o2 sensors is melted it could be causing a short inside the plug.

Sorry for all the question beised AC Delco what is another good brand of spark plug wires that is good for the blazers. I plan on getting AC delco , rotor, cap and plugs.

Last edited by swartlkk; 08-03-2010 at 06:05 PM. Reason: *Consecutive Posts* - Please use the edit feature to add more information to your post if another member has yet to reply.

#12

08-03-2010, 06:09 PM

swartlkk

Administrator

Join Date: May 2005

Location: Waterloo, NY

Posts: 41,137

I have had good luck with the Belden Premium wires from Napa. I also didn't have any problems with their premium cap/rotor either on my old '00 Bravada.

I'd get that connector fixed asap!