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P0403 Diagnostic Trouble Code Discussion for March 2025

EGR Solenoid Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0403
Help Request Posted
2007 Jeep Wrangler Unlimited Rubicon 3.8L MIL Lamp on VIN: 1J4GA69137
P0403: EGR Solenoid Circuit Malfunction. ... valve unresponsive when vehicle was hot, changed valve with OEM, no problem. Now throws P0403, EGR valve still working fine, responds when cold and hot to scan tool command. Have checked all the wiring to EGR, no problem. Has good wire continuity to P...
March 06, 2025