2012 Jeep Wrangler
Mileage
154,719
Service Date
8/2/2024
Services Performed
- FOUND: Connected a scan tool and found code P2096 – Post Catalyst Fuel Trim System Too Lean (Bank 1). Performed a road test while monitoring live scan tool data and observed the oxygen sensor (B1-S2) parameter was below specifications and did not respond to changes in air fuel ratio. Inspected the oxygen sensor (B1-S2) wiring harness and detected no obvious faults. Performed a propane enrichment test at idle, monitored the oxygen sensor (B1-S2) signal parameter on the scan tool and found the sensor signal parameter did not respond to the rich fuel mixture condition. These test results verified the oxygen sensor (B1-S2) was faulty. Suggest R&R O2 sensor B1S2 while test drive found minor misfires under no load and proceed to pull the spark plugs in the passenger side, found 2 of the spark plugs hand tightened. spark plugs electrode looks OK but are being expose to the compression from the engine, same problem with the 2 coils packs are in bad shape due the compression leak(oil a the junction of the coil pack). also the combustion chambers(1,3,5) was bore scope and found in normal conditions. Suggest R&R 6 spark plugs and 6 coil packs. Car cooling system was pressure tested found small leaks from loosen hose clamps. clamps where adjusted and the leak went away.
- Multi-Point Inspection
- All Fluids Checked and Topped up if possible
- OXYGEN SENSOR – Remove & Replace – Upstream,Right Side
- IGNITION COIL CYLINDER#5 – Remove & Replace
Dave A. gave our service a 5 star review on 8/2/2024
