Ignition/Distributor Engine Speed Input Circuit No Signal
No engine speed signal from the ignition/distributor — open circuit, dead pickup, or sensor air gap too wide.
Affected components
- Ignition distributor
Common causes
- High likelihood: Pickup dead or air gap excessive
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.