garajizOBD-II code · manufacturer-specific
P1109
MAF Ground Malfunction
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1109 mean?
P1109 is defined as “MAF Ground Malfunction”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Ford: IAT - B Sensor Intermittent
- Lincoln, Mercury: IAT B Sensor Intermittent
- Volkswagen: Oxygen Sensor Circuit Bank 2 Sensor 2 Voltage Too Low/Air Leak
- Buick, Cadillac, Chevrolet, Chrysler, GM, GMC, Oldsmobile, Saturn: Secondary Port Throttle System
Related codes
- P1108MAF Sensor In Range But Higher Than Expected
- P1107MAF Sensor In Range But Lower Than Expected
- P1106KOER Not Able To Complete KOER Aborted
- P1105MAF Sensor Out Of Self Test Range./
- P1104MAF Sensor Intermittent/ Check of all OBDII Systems Not Complete
- P11031-4 Upshift (Skip Shift) Lamp Control Circuit Malfunction
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.