p2096
Moderate
Fiat · Cars
Post Catalytic Fuel Trim System Too Rich (Bank 1)
Quick Answer
Error code P2096 on your Fiat Cars means: Post Catalytic Fuel Trim System Too Rich (Bank 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
348330334312319356
Likely Causes
  1. Faulty downstream oxygen sensor
  2. Fuel injector leaking or stuck open
  3. Exhaust leak after catalytic converter
  4. Engine running rich overall
  5. Fuel pressure regulator malfunction
How to Fix It
1
Test downstream oxygen sensor voltage
2
Check fuel injector pulse width and spray
3
Inspect exhaust for leaks post-catalyst
4
Test fuel pressure regulator
5
Perform fuel trim analysis with scanner
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
Oxygen sensor
Fuel injector
Fuel pressure regulator
Related Error Codes
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