2009 Infiniti Q70 Repair Guides
P03032009 Infiniti Q70 P0303 — Cylinder 3 Misfire Detected Diagnosis & Fix
Cylinder 3 misfire detected. Check ignition components and fuel injectors serving cylinder 3 in your Infiniti.
Advanced
2-3 hours
P04202009 Infiniti Q70 P0420 — Catalyst System Efficiency Below Threshold Diagnosis & Fix
Catalytic converter efficiency below threshold in your Infiniti. This often indicates converter deterioration or exhaust leaks.
Advanced
2-3 hours
P05552009 Infiniti Q70 P0555 — Brake Assist Vacuum Sensor Circuit Diagnosis & Fix
Brake assist vacuum sensor circuit issues can affect brake feel in your Infiniti.
Moderate
1-2 hours
P06082009 Infiniti Q70 P0608 — Speed Sensor Power Module Diagnosis & Fix
Speed sensor power module issues affect multiple speed sensors in your Infiniti.
Advanced
2-3 hours
P12002009 Infiniti Q70 P1200 — Fuel Injector Circuit Bank 1 Diagnosis & Fix
Fuel injector circuit Bank 1 malfunction in your Infiniti's multi-port injection system.
Advanced
2-3 hours
U02032009 Infiniti Q70 U0203 — Lost Communication with Mirror Module Diagnosis & Fix
Lost communication with mirror module in your Infiniti power mirrors.
Advanced
2-3 hours