2001 Tahoe Blinking Check Engine Light?

[Justin509]

I got the cats checked and guess what?

 

[SunlitComet]

They were not there?

---------- Post added at 05:08 PM ---------- Previous post was at 04:52 PM ----------

Plugged?
Blown out?

Absolutely Fabulous!

 

[Justin509]

The passenger side is completly clogged! So im guessing that that is the reasone why its running like it is and sucking so much gas?
Can I just pull them and put stright pipe??

 

[SunlitComet]

That will fail a smog test piss your computer off and is generally illegal. Get your self a Direct bolt-on magnaflow hi-flow cats if. About $600.

---------- Post added at 05:33 PM ---------- Previous post was at 05:29 PM ----------

And should be 50 state compliant.

 

[Justin509]

Will this work?
http://www.theautopartsshop.com/Sea...nt=Catalytic Converter&utm_campaign=chevrolet

 

[SunlitComet]

YES! direct bolt on 50 state legal as well. your o2 sensors just transfer over although I would recommend replacement pf them all if they are all original. If nothing else is wrong you would pass a smog with flying colors an get power back to normal if not a little better.

 

[Justin509]

So before I ordered the new cats I pulled the clogged one out just to make sure that was it and it runs great now! Amazing how that caused it to run so bad.. So now Im going to order the new cats. Im going to change both because I can see the other one going bad. Thanks for all the help....

 

[SunlitComet]

Actually when you order the direct bolt you don't have a choice you get the whole assembly I pictured above. And of course it is the smart thing to do.

Post some pics of the cats. Would like to see how bad they are. I am guessing there are burned shut from running a rich mixture down them.

---------- Post added at 08:45 PM ---------- Previous post was at 08:29 PM ----------

Also I would still recommend some one with the same engine chime in here. I could be wrong, but a open hole in the throttle plate just does not sound right and maybe along with old o2 sensors maybe be causing this mess for you I mean the TB, WOW.

It is like someone drilled a hole to get the engine to run faster for a high electric load or something.

 

[Spikeymikey]

Same here

So my 03 Tahoe started the flashing CEL for the first time anytime I went above 65 on the freeway. Guess I should start with going to autozone to test it?

 

[SunlitComet]

You are getting a active misfire the scanner will help determine where and why.