Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC Detection Logic
To judge malfunctions, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal fluctuates according to fuel feedback control.
|
DTC No. |
Trouble diagnosis name (Trouble diagnosis content) |
DTC detecting condition |
Possible Cause |
|
|
P0130 |
A/F SENSOR1 (B1) [Air fuel ratio (A/F) sensor 1 (bank 1) circuit] |
A) |
The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx. 1.5 V. |
|
|
B) |
The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 1.5 V. |
|||
|
P0150 |
A/F SENSOR1 (B2) [Air fuel ratio (A/F) sensor 1 (bank 2) circuit] |
A) |
The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx.1.5 V. |
|
|
B) |
The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 1.5 V. |
|||
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.