Fault Code P0172
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0172
System Too Rich (Bank 1)
The air-fuel mixture is too rich (too much fuel) in Bank 1.
Part Details
Part Name
Fuel injectors (Fuel Injectors)
Reference P/N (OEM)
23250-22040
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪200 - ₪600 per unit
Engine Location
Intake manifold — per cylinder
Symptoms
- Black smoke from exhaust
- Strong fuel smell
- High fuel consumption
- Black spark plugs
Possible Causes
- 1Leaking fuel injector
- 2Faulty oxygen sensor
- 3Faulty fuel pressure regulator
- 4Defective MAF sensor
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