P21EB: The cylinder 8 injector B gives a higher signal than normal
The cylinder 8 injector B gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P21EB |
|---|---|
| System | Engine and transmission |
| Group | P21xx, Throttle, injection and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P21EB with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P21EB with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P21E7 The cylinder 6 injector B gives a higher signal than normal
- P21E8 The cylinder 7 injector B gives a lower signal than normal
- P21E9 The cylinder 7 injector B gives a higher signal than normal
- P21EA The cylinder 8 injector B gives a lower signal than normal
- P21EC The cylinder 9 injector B gives a lower signal than normal
- P21ED The cylinder 9 injector B gives a higher signal than normal
- P21EE The cylinder 10 injector B gives a lower signal than normal
- P21EF The cylinder 10 injector B gives a higher signal than normal
- P2100 Throttle actuator A control motor circuit open
- P2101 Throttle actuator A control motor circuit range or performance
- P2102 Throttle actuator A control motor circuit low
- P2104 Throttle control system: forced idle
What does code P21EB mean?
The cylinder 8 injector B gives a higher signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P21EB?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P21EB comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
