Can't figure out this 2 codes p0171 p0172 ?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

KJ Rocky

New Member
Joined
Feb 10, 2021
Messages
6
Reaction score
5
Location
New York
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 hoping it will help show something I'm not seeing. The only issue is I can't upload it (says to large)
 

tommudd

Moderator
Staff member
Moderator
Joined
Jul 14, 2005
Messages
22,456
Reaction score
3,643
Location
Southeastern Ohio
First code is Bank 1 lean condition, too much oxygen
second could be a vac leak, fuel pump, injector or even an air filter clogged
 

KJ Rocky

New Member
Joined
Feb 10, 2021
Messages
6
Reaction score
5
Location
New York
First code is Bank 1 lean condition, too much oxygen
second could be a vac leak, fuel pump, injector or even an air filter clogged

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 data while running. If anyone feels like looking at it to help I can sent it
Thank you
 
Top