p2096
Moderate
Subaru · SUVs & Crossovers
Post Catalyst Fuel Trim Too Lean
Quick Answer
Error code P2096 on your Subaru SUVs & Crossovers means: Post Catalyst Fuel Trim Too Lean. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Connect OBD-II scanner and monitor fuel trim
2
Check oxygen sensor voltage after catalyst
3
Inspect for exhaust leaks downstream of catalyst
4
Verify fuel pressure regulation
5
Check for air leaks in intake manifold
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
OBD-II scanner
Downstream oxygen sensor
Fuel pressure gauge
Gaskets and sealant
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