56152 Mercruiser SEAL, REAR COVER PLATE

Table 1
J1939 Code and Description Comments
1352-0
Engine Cylinder #1 Knock Level : High - most severe (3) The level of detonation has exceeded the trip point.
Maximum retardation of the timing was unable to control the detonation adequately during the number of ignition sparks that are allowed.
The engine performance may be affected by an adjustment of the timing in order to reduce detonation.
The code is logged.
1352-15
Engine Cylinder #1 Knock Level : High