TANK AS-FUEL 3234142 - Caterpillar

Illustration 1 g00815636
Typical schematic
Illustration 2 g01090780
P1 ECM connector (P1-12) Timing calibration − (P1-18) Timing calibration + (P1-29) Digital return (P1-32) +V timing (P1-38) Engine speed/timing signalTest Step 1. Check for an "ACTIVE" Diagnostic Code
Remove the timing calibration plug from the flywheel housing.
Examine the flywheel through the timing calibration hole. Ensure that the probe is not inserted into the timing pin hole. If necessary, turn the engine.
Install the 6V-3093 Transducer Adapter into the hole for the timing calibration at the flywheel.
Insert the 6V-2197 Transducer through the 6V-3093 Transducer Adapter. Insert the transducer until contact is made with the surface of the flywheel. Move the transducer 0.9 mm (0.04 inch) away from the flywheel.
Do not install the timing calibration probe over the timing pin hole at the flywheel or damage will result.
Tighten the nut on the 6V-3093 Transducer Adapter .
Connect the 7X-1695 Cable As from the engine timing calibration probe to the connector P26.
Connect the Caterpillar Electronic Technician (ET) to the cab service tool connector J42. Start Cat ET.
Start the engine. Allow the engine to exit cold mode operation.Expected Result:Only a CID-FMI 261-13 is active.Results:
OK - Only a CID-FMI 261-13 is active. Proceed to Test Step 2.
Not OK - A CID-FMI 261-13 is not active.Repair: Repair any active diagnostic codes.STOPTest Step 2. Calibrate the Engine Speed/Timing Sensor
Select "Service" from the main menu on Cat ET. Select "Calibrations" from the "Service" menu. Select "Timing Calibration".
Press the "Continue" button on Cat ET. Wait until Cat ET indicates that the ECM has calculated the timing reference.Note: The engine speed will be set to 800 rpm by the ECM during the calibration.Note: If Cat ET reads "CALIBRATION UNSUCCESSFUL", the electronic injection timing has not been set.Expected Result:The timing calibrates.Results:
OK - The timing calibration was successful.Repair: Disconnect the timing calibration probe before you exit the "Timing Calibration" screen on Cat ET. Reset the system and check for any diagnostic codes.STOP
Not OK - The timing did not calibrate.Repair: Verify that the engine speed was stable during the testing ( 50 rpm). If the engine speed was unstable or the engine speed could not be controlled within 50 rpm because of mechanical factors or electrical factors, refer to Troubleshooting, "Engine Misfires, Runs Rough or Is Unstable".If all of the problems have been corrected but the timing can not be calibrated, check the cable of the 6V-2197 Transducer and check the 6V-2197 Transducer in order to verify that the transducer is not bent. Verify that the transducer is installed correctly before restarting this procedure.STOP