Recent content by mrkonablue

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HELP! Troubleshooting guru needed: P0155 will not go away

Go straight to the wiring harness. I been having this issue along with lean codes its definitely the wiring harness. Just trace the connector im sure you'll find a issue.
- mrkonablue
- Post #29
- May 27, 2026
- Forum: 2005+ Mustang GT 4.6L Tech
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P2195 and P2197 - Troubles and Tribulation

Ive been chasing those 2 codes since 2020 when I got mines. Changed everything I could find o2 sensors,fuel pump,sending unit, upper intake gaskets,map sensors and erg. Food for thought tho check the harness for sure you might have to remove alot of tape but start there in the back at the top 2...
- mrkonablue
- Post #4
- Apr 21, 2026
- Forum: 2005+ Ford Mustang v6 4.0L Tech