LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Plymouth >> 1981 >> Trailduster PD150, 5.2L Eng VIN R >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electronic Fuel Control >> Operation >> Data Sensors >> Detonation Sensor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Detonation Sensor

Used only on 5.2L with 4-barrel carburetor, this sensor is mounted in the intake manifold and sends a low voltage signal to the SCC whenever engine knock is detected. The SCC then retards timing a maximum of 11°, the actual amount being proportional to strength and frequency of detonation. When the condition no longer exits, timing is advanced to original value.

Fig 1: Location of Data Sensors on 3.7L Engines
G09339917Courtesy of CHRYSLER GROUP, LLC
Fig 2: Location of Data Sensors on 5.2L Engine (Rear View)
G09339918Courtesy of CHRYSLER GROUP, LLC
Fig 3: Location of Data Sensors on 5.2L Engine (Front View)
G09339919Courtesy of CHRYSLER GROUP, LLC