PassoFix

P0130 (blink 21) on Toyota Passo (KGC10): Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1)

Short answer: P0130 means “Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1)”. The car’s computer has found a fault in the Engine control (EFI) system and turns on the Check engine light (MIL). First check: is the signal from the oxygen sensor inputted to the EFI ECU?.

Code
P0130 · blink 21
System
Engine control (EFI)
Dashboard light
Check engine light (MIL)
Also sold as
Daihatsu Boon, Daihatsu Sirion (M300)
Applies to
1KR-FE: M300 (Sirion export = JDM Boon M300S/M301S(4WD? see gaps) & Passo KGC10/KGC15). JDM-spec ECU not separately documented | K3-VE: M301 (Sirion 1.3 = JDM Boon M310S? / Passo QNC10)
Confidence
high (factory manual, export spec)
Source
carmanualsclub.com

Symptoms and when it is set

  1. When no rich signal is sent even once from the oxygen sensor even if the condition continues in which the engine revolution speed is more than 3000 rpm and the power increase compensation is contin- ued over the specified value after the engine warming-up

Likely causes

  1. Air induction system
  2. Fuel pressure
  3. Injector
  4. Open wire or short circuit in the oxygen sensor circuit
  5. Oxygen sensor
  6. EFI ECU

What to check, in order

  1. Is the signal from the oxygen sensor inputted to the EFI ECU?
  2. Is the harness between the oxygen sensor and the EFI ECU normal?
  3. Is the output of the oxygen sensor correct? (If there are n

Related on this car

Same code on other cars

← P0120/41 P0135/23 →

Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.