p2187
Moderate
Maserati · Sedans & Sports Cars
System Too Rich at Idle (Bank 1)
Quick Answer
Error code P2187 on your Maserati Sedans & Sports Cars means: System Too Rich at Idle (Bank 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check fuel pressure at idle
2
Test oxygen sensor operation
3
Inspect fuel injectors for leaks
4
Monitor engine coolant temperature
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
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