P305B – BMW DTC

BMW DTC P305B – Injector 6 Stuck Open

DTC P305B meaning on BMW

The DTC P305B code on a BMW indicates that Injector 6 is stuck open. This means that the fuel injector for cylinder 6 is not closing properly, causing an excessive amount of fuel to be delivered to the engine.

BMW DTC P305B symptoms

Some common symptoms of DTC P305B on a BMW may include:

  • Engine misfires
  • Decreased fuel efficiency
  • Rough idling
  • Engine stalling
  • Check Engine Light (CEL) illuminated

BMW DTC P305B causes

The possible causes of DTC P305B on a BMW include:

  • Faulty fuel injector
  • Clogged fuel injector
  • Wiring or connector issues
  • ECU (Engine Control Unit) malfunction

BMW DTC P305B seriousness

Ignoring DTC P305B on a BMW can lead to potential engine damage, decreased performance, and increased fuel consumption. It is important to address this issue promptly to prevent further complications.

How to diagnose DTC P305B on BMW

To diagnose DTC P305B on a BMW, you can perform the following steps:

  1. Use a diagnostic scanner to retrieve the fault code
  2. Inspect the wiring and connectors related to Injector 6
  3. Test the fuel injector for proper operation
  4. Check for any fuel leaks or clogs in the system

How to fix DTC P305B on BMW

To fix DTC P305B on a BMW, you may need to:

  1. Replace the faulty fuel injector
  2. Clean or unclog the fuel injector
  3. Repair any wiring or connector issues
  4. Reset the ECU and clear the fault code

How to erase DTC P305B on BMW

To erase DTC P305B on a BMW, you can:

  1. Use a diagnostic scanner to clear the fault code
  2. Address and fix the underlying issue causing the fault code
  3. Perform a test drive to ensure the code does not return

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.