trouble code P0131
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
Before you start replacing parts, check that the clamps on your intake are all tight from the MAF back to the throttle body. The lean code your getting is often caused by air leaks in this area. Code 0131 is usually accompanied by 0151 when this occurs, but it's worth checking first.
7th Gear
Joined: Jun 2019
Posts: 7
Likes: 0
Before you start replacing parts, check that the clamps on your intake are all tight from the MAF back to the throttle body. The lean code your getting is often caused by air leaks in this area. Code 0131 is usually accompanied by 0151 when this occurs, but it's worth checking first.
Last edited by levip22; Aug 18, 2020 at 10:13 PM.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,595
Likes: 4,057
From: Cape Coral, Florida
All 3 of these DTC’s are “low voltage” issues with both upstream O2 sensors and the MAF sensor...without a scan tool to look at the O2 sensors and MAF sensor it will be difficult to diagnose...a DVOM would be helpful to have !!
Last edited by C5 Diag; Aug 19, 2020 at 02:56 PM.
