27E8 — Knock Control Test Pulse
Severity: Warning
Can you drive? With caution: limp mode possible, have it checked soon
Make: BMW
| Meaning | Knock Control Test Pulse. |
| System | ME 9 |
| Family | Manufacturer-native code |
Frequently asked questions
What does code 27E8 mean?
Knock Control Test Pulse. Knock Control Test Pulse. (System: ME 9)
Can I keep driving with code 27E8 active?
With caution: limp mode possible, have it checked soon
How do you fix code 27E8?
Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.
Need help with this fault?
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Where to get it fixed
Related codes
- 27 — Idle Speed Signal
- 27 — Multiplicative Adaptation Bank 2 Control Limit Reached
- 27 — Idle Speed Controller
- 27 — Idle Control Valve Malfunction
- 2712 — DMTL Solenoid Valve Activation
- 2713 — Lambda Sensors Pre Cat Swapped
- 2714 — Lambda Sensor Heater Post Cat Bank 2
- 2715 — Lambda Sensor Heater Pre Cat Bank 2
- 2716 — Lambda Sensor Heater Post Cat Bank 1
- 2717 — Lambda Sensor Heater Post Cat Bank 2
- 2718 — Crankshaft Sensor Reference
- 2719 — Crankshaft Sensor Period