Subaru P1602: Control Module Programming Error
Is your scanner showing Subaru P1602?
No worries. We'll show you what it means and how to deal with it.
Subaru P1602: Control Module Programming Error
OVERVIEWWhat Does The Subaru P1602 Code Mean?
Engine keeps running at higher speed than specified idle speed. Engine keeps running at a lower speed than the specified idle speed.
What Are The Symptoms Of The Subaru P1602 Code?
Engine stalls
What Are The Potential Causes Of The Subaru P1602 Code?
- Incorrect amount of engine oil
- Holes or loose bolts on the exhaust system
- Loose mounting bolts, holes, or disconnected hoses on the air intake system
- Clogged or bent fuel lines
- Improper fuel pump discharge
- Defective engine coolant temperature sensor
- Defective mass air flow and intake air temperature sensor
- Wiring harness between ECM and fuel injector needs repair
- Faulty fuel injector
- Fuel injector wiring needs repair
- Defective electronic throttle control
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Subaru Fuel Injectors
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
2008 Impreza WRX Repair Manual for P1602 – Pages 280-289.
