Workshop Manual

6E–303
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P0402 – EGR Pintle Crank Open Error
Step Action Value(s) Yes No
1 Was the “On-Board Diagnostic (OBD) System Check”
performed?
— Go to Step 2
Go to OBD
System
Check
2 1. Ignition “ON”, engine “OFF”, review and record
Tech 2 Failure Records data.
2. Operate the vehicle within Failure Records
conditions as noted.
3. Using a Tech 2, monitor “DTC” info for DTC P0402
until the DTC P0402 test runs. Note the result.
Does the Tech 2 indicates DTC P0402 failed this
ignition?
— Go to Step 3
Refer to
Diagnostic
Aids
3 1. Disconnect the EGR valve harness connector.
2. Inspect the EGR valve and connectors for damaged
pin or terminals.
Were there any damaged pins or terminals?
— Go to Step 4 Go to Step 5
4 Repair the damaged pin or terminal.
Is the action complete?
— Verify repair —
5 1. Remove EGR valve from Engine.
2. Inspect EGR valve whether there is any foreign
material between seat and pintle.
Was any foreign material in EGR valve?
— Go to Step 6 Go to Step 7
6 1. Remove EGR valve foreign material from EGR
valve and clean up inside.
2. Visually inspect for damage of pintle and seat,
which leakage may occur.
Was there any severe damage which affects function?
— Go to Step 7
Verify repair
Go to Step 8
7 1. Reconnect.
2. Ignition “OFF”.
3. Install the Tech 2.
4. Run the engine at idle.
5. On Tech-II, select special function for EGR.
6. Use the “UP” arrow to increase the EGR from 0% to
40%.
Did EGR work properly?
— — Go to Step 8
8 Replace the EGR valve.
Does DTC P0402 still fail “DTC” test on the Tech 2?
— Go to Step 9 Verify repair
9 Replace the PCM.
Is the action complete?
— Verify repair —