Series 60 DDEC VI Troubleshooting – Section 112.6 SPN 3563/FMI 21

Section 112.6
SPN 3563/FMI 21

This diagnosis is typically a ambient and inlet manifold pressure difference (High Box).‪

Section 112.6.1
Air System Check

Check as follows:‪

1. Inspect the entire air intake system for leaks and/or restrictions.
   1. If air intake system leaks and/or restrictions are found, repair as necessary. Refer to "112.6.1.1 Verify Repairs" .
   2. If no air intake system leaks are found, go to step 2 .
2. Connect to DDDL 7.0.
3. Turn the ignition ON (key On, engine OFF).
4. Perform the Turbo Actuator Hysteresis test.
   1. If the test fails, refer to 6.5 in the Series 60 Service Manual (6SE2007).
   2. If the test passed, go to step 5 .
5. With the ignition ON (key On, engine OFF) compare the barometric pressure to the intake manifold pressure (the correct barometric pressure readings for your local altitude or your local weather report are listed in Table "Barometric Pressure" ).
   1. If the barometric pressure is within range for your altitude, go to step 6 .
   2. If the barometric pressure is not within range for your altitude, contact the Detroit Diesel Customer Support Center at 313–592–5800 for MCM replacement authorization.

   Baro (kPa)‪	Altitude (Ft)‪	Altitude (M)‪
   100.01‪	0‪	0‪
   99.4‪	200‪	61‪
   98.7‪	400‪	121‪
   98.0‪	600‪	182‪
   97.4‪	800‪	242‪
   96.7‪	1000‪	303‪
   96.1‪	1200‪	364‪
   95.4‪	1400‪	424‪
   94.8‪	1600‪	485‪
   94.2‪	1800‪	545‪
   93.5‪	2000‪	606‪
   92.9‪	2200‪	667‪
   92.3‪	2400‪	727‪
   91.6‪	2600‪	788‪
   91.0‪	2800‪	848‪
   90.4‪	3000‪	909‪
   89.8‪	3200‪	970‪
   89.1‪	3400‪	1030‪
   88.5‪	3600‪	1091‪
   87.9‪	3800‪	1152‪
   87.3‪	4000‪	1212‪
   86.7‪	4200‪	1273‪
   86.1‪	4400‪	1333‪
   85.5‪	4600‪	1394‪
   84.9‪	4800‪	1455‪
   84.3‪	5000‪	1515‪
   83.7‪	5200‪	1576‪
   83.1‪	5400‪	1636‪
   82.5‪	5600‪	1697‪
   81.9‪	5800‪	1758‪
   81.3‪	6000‪	1818‪
   80.7‪	6200‪	1879‪
   80.1‪	6400‪	1939‪
   79.5‪	6600‪	2000‪
   79.0‪	6800‪	2061‪
   78.4‪	7000‪	2121‪
   77.8‪	7200‪	2182‪
   77.2‪	7400‪	2242‪
   76.7‪	7600‪	2303‪
   76.1‪	7800‪	2364‪
   75.5‪	8000‪	2424‪
   75.0‪	8200‪	2485‪
   74.4‪	8400‪	2545‪
   73.8‪	8600‪	2606‪
   73.3‪	8800‪	2667‪
   72.7‪	9000‪	2727‪
   72.2‪	9200‪	2788‪
   71.6‪	9400‪	2848‪
   71.1‪	9600‪	2909‪
   70.6‪	9800‪	2970‪
   70.0‪	10000‪	3030‪
   69.5‪	10200‪	3091‪
   68.9‪	10400‪	3152‪
   68.4‪	10600‪	3212‪
   67.9‪	10800‪	3273‪
   67.3‪	11000‪	3333‪
   66.8‪	11200‪	3394‪
   66.3‪	11400‪	3455‪
   65.8‪	11600‪	3515‪
   65.2‪	11800‪	3576‪
   64.7‪	12000‪	3636‪
   64.2‪	12200‪	3697‪
   63.7‪	12400‪	3758‪
   63.2‪	12600‪	3818‪
   62.7‪	12800‪	3879‪
   62.2‪	13000‪	3939‪
   61.7‪	13200‪	4000‪
   61.2‪	13400‪	4061‪
   60.7‪	13600‪	4121‪
   60.2‪	13800‪	4182‪
   59.7‪	14000‪	4242‪
   59.2‪	14200‪	4303‪
   58.7‪	14400‪	4364‪
   58.2‪	14600‪	4424‪
   57.7‪	14800‪	4485‪
   57.3‪	15000‪	4545‪
   56.8‪	15200‪	4606‪
   56.3‪	15400‪	4667‪
   55.8‪	15600‪	4727‪
   55.4‪	15800‪	4788‪
   54.9‪	16000‪	4848‪

   Table 1. Barometric Pressure
6. Disconnect the Intake Manifold Pressure Sensor.
7. Inspect the Intake Manifold Pressure Sensor connector for bent, spread or corroded pins.
   1. If damage is found, repair the connector as necessary. Refer to "112.6.1.1 Verify Repairs" .
   2. If no damage is found, replace the Intake Manifold Pressure Sensor. Refer to "112.6.1.1 Verify Repairs" .

Section 112.6.1.1
Verify Repairs

Verify repairs as follows:‪

1. Turn ignition OFF.
2. Reconnect any electrical connections that were disconnected to perform the diagnosis.
3. Clear codes with DDDL 7.0 or latest version.
4. Start and bring engine up to operating temperature (over 140°F/60°C).
5. Verify operation is satisfactory and no warning lamps illuminate. If warning lamps illuminate, troubleshoot the codes. If assistance is required, call the Detroit Diesel Customer Support Center at 313–592–5800.