Carbon Accumulation Check
- Connect the HDS to the data link connector (DLC) (A) located behind under the driver's side of the front console.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Turn the ignition switch ON (II).
- Make sure the HDS communicates with the vehicle and the ECM. If it doesn't, go to DLC CIRCUIT TROUBLESHOOTING
.
- Start the engine. Hold the engine speed at 3,000 rpm without load (in neutral) until the radiator fan comes on, then let it idle.
- Check the REL TP SENSOR in the DATA LIST the HDS. The reading should be below 2.46 deg. If it is not, clean the throttle body (see THROTTLE BODY CLEANING
).