OBD LensOBD Lens App
P1021

Engine Failed To Start Due To Mechanical,Fuel or Ignition Conditions

P1021 is described as “Engine Failed To Start Due To Mechanical,Fuel or Ignition Conditions” in the Chrysler reference. Other reference families are shown below; select the scope relevant to your vehicle.

Manufacturer reference family

Chrysler: P1021

en

Engine Failed To Start Due To Mechanical,Fuel or Ignition Conditions

tr

Mekanik, Yakıt veya Ateşleme Koşullarına Bağlı Olarak Motor Çalıştırılamadı

Reference namespace
chrysler
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Chrysler.

5 profiles assigned this reference family
Manufacturer reference family

Acura / Honda: P1021

en

Valve Pause System Stuck On

Reference namespace
honda
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Honda, Acura.

12 profiles assigned this reference family
Manufacturer reference family

Dodge / Mitsubishi: P1021

en

Oil control Valve open

Reference namespace
mitsubishi
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Mitsubishi, Dodge.

31 profiles assigned this reference family

7 more related profiles are listed in the vehicle directory.

Manufacturer reference family

Saab: P1021

en

Injector Cyl. No 2 Shorting To Ground

Reference namespace
saab
Source revision
legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording
Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method

OBD Lens reference library · catalog legacy-owner-2026-10-09-v81. Sources and scope