4JA1/4JH1 ENGINE DRIVEABILITY AND EMISSIONS Step
Action
28
Remove the eye bolt with gauze filter from the injection pump and check for the following conditions.
6E–387
Value(s)
Yes
No
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Replace the eye bolt with gauze filter and verify repair
Go to Step 29
• All electrical connections within a suspected circuit and/or system Was a problem found?
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Verify repair
Go to Step 30
Is the ECM programmed with the latest software release? If not, download the latest software to the ECM using the “SPS (Service Programming System)”. Was the problem solved?
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Verify repair
Go to Step 31
Substitute a known good ECM and recheck. Was the problem solved? IMPORTANT: The replacement ECM must be programmed. Refer to section of the Service Programming System (SPS) in this manual. Following ECM programming, the immobilizer system (if equipped) must be linked to the ECM. Refer to section 11 “Immobilizer System-ECM replacement” for the ECM/Immobilizer linking procedure.
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Go to Step 32
Go to Step 33
Replace the ECM. Is the action complete? IMPORTANT: The replacement ECM must be programmed. Refer to section of the Service Programming System (SPS) in this manual. Following ECM programming, the immobilizer system (if equipped) must be linked to the ECM. Refer to section 11 “Immobilizer System-ECM replacement” for the ECM/Immobilizer linking procedure.
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Verify repair
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• Objects blocking at the gauze filter. Check for a condition that causes contaminated fuel, such as the customer is using an aftermarket fuel filter or extended maintenance interval. • Check for a condition that causes fuel waxing or icing, such as the customer is using an incorrect fuel type in winter season or water mixed with the fuel. If a problem is found, repair as necessary. Was the problem found?
29
1. Review all diagnostic procedures within this table. 2. If all procedures have been completed and no malfunctions have been found, review/inspect the following: • Visual/physical inspection • Tech 2 data
30
31
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