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Fixed... it was the bank 1 oxygen sensor

Btw tommudd both codes show at the same time.

New air filter. Check all hoses, intake, exhaust for leaks. I have some soot and moisture from my tail pipe. Poor gas mileage, Head gasket is good. Jeep has great power still. Runs nice at highway speeds or any speed driving. I'm not sure what else to look at? I took a live video of all the...

My 2004 Jeep had a check engine light on today. Codes P0171 & P0172. I check fir air leaks found none. Jeep is idling a bit rough. Very well maintained. Did plugs 1 month ago. Has been running good for the last 3 months other than a rough idle here and there. I took a video with my scan tool...

Sorry, this is it not. I'll upload before and after

Hi everyone new here I've been using this forum a lot. I recently just bought my 5th Jeep. The last few days I have been cleaning it up and replacing the entire suspension . Fixing many broken and missing items. Starting to LQQK nice again.