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P0400
P0400 Code keeps coming back. New EGR Valve, New EGR solenoid, New vacuum valve, no vacuum leaks, Vacuum routing per specification Engine almost stall when EGR open at idle, at EGR drive cycle Code Come Back P0400 and Monitor Complete, Login to read more. ![]()
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| Engine | 3.5 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2001 Mitsubishi Montero Limited 3.5L
| Engine | 3.5 L |
| Trans | 4-speed Automatic (Electronic) |

3 Replies Received
3 Replies Received