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P0400 Diagnostic Trouble Code Discussion for August 2006

Exhaust Gas Recirculation System Flow Malfunction


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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
2000 Mitsubishi Eclipse GT 3.0L Excessive Emissions, MIL Lamp on VIN: 4A3AC54L3Y
P0400: Exhaust Gas Recirculation System Flow Malfunction. ... performed all tests recommended in IATN knowlege base for code P0400. Tested egr solenoid & egr valve - both good. Lost vacuum supply to EGR solenoid. There is an aftermarket air intake tube that someone replaced. Can this cause a problem? If not, any ...
August 02, 2006
2000 Nissan Frontier XE 2.4L MIL Lamp on VIN: 1NGDD26S5Y
P0400: EGR System Recirculation Flow. The Vehicle came in with a Code 32 and no driveability concerns.. Our first attempt to fix this vehicle we replaced the EGR-Back Pressure Transducer and the EGR control Valve Solenoid; we also performed a fuel injection cleaning. Vehicle left only to come back...
August 15, 2006
1997 Subaru Legacy Outback 2.5L MIL Lamp on VIN: 4S3BG6852V
P0400: Insufficient EGR System Flow Detected. GENTLEMEN: 1997 SUBARU WITH P0400 EGR MALFUNCITON CODE THAT WILL RESET AFTER INTERSTATE DRIVING. I'VE HAD SEVERAL SUBARUS OVER THE YEARS WITH THIS CODE AND ALL HAVE BEEN CORRECTED WITH CLEANING PORTS, REPLACING FILTERS, OR BPT'S . MOST COMMON CAUSE HAS ALWAYS ...
August 22, 2006
2001 Mazda Millenia 2.5L MIL Lamp on VIN: JM1TA22191
P0400: EGR System Flow Malfunction. Car came in last week with a PO400,found no voltage change from Egr Sensor while driving,vacuum supply fine,no broken vacuum lines,EGR passages not restricted,moniter vacuum between EGR valve and soleniod with gauge spliced in during test drive soleniods seem ...
August 25, 2006
2001 Mazda Millenia 2.5L MIL Lamp on VIN: JM1TA22191
P0400: EGR System Flow Malfunction. Car came in last week with a PO400,found no voltage change from Egr Sensor while driving,vacuum supply fine,no broken vacuum lines,EGR passages not restricted,moniter vacuum between EGR valve and soleniod with gauge spliced in during test drive soleniods seem ...
August 28, 2006
2000 Mitsubishi Eclipse GT 3.0L Excessive Emissions, MIL Lamp on VIN: 4A3AC54L3Y
P0400: Exhaust Gas Recirculation System Flow Malfunction. ... performed all tests recommended in IATN knowlege base for code P0400. Tested egr solenoid & egr valve - both good. Lost vacuum supply to EGR solenoid. There is an aftermarket air intake tube that someone replaced. Can this cause a problem? If not, any ...
August 02, 2006
2000 Nissan Frontier XE 2.4L MIL Lamp on VIN: 1NGDD26S5Y
P0400: EGR System Recirculation Flow. The Vehicle came in with a Code 32 and no driveability concerns.. Our first attempt to fix this vehicle we replaced the EGR-Back Pressure Transducer and the EGR control Valve Solenoid; we also performed a fuel injection cleaning. Vehicle left only to come back...
August 15, 2006
1997 Subaru Legacy Outback 2.5L MIL Lamp on VIN: 4S3BG6852V
P0400: Insufficient EGR System Flow Detected. GENTLEMEN: 1997 SUBARU WITH P0400 EGR MALFUNCITON CODE THAT WILL RESET AFTER INTERSTATE DRIVING. I'VE HAD SEVERAL SUBARUS OVER THE YEARS WITH THIS CODE AND ALL HAVE BEEN CORRECTED WITH CLEANING PORTS, REPLACING FILTERS, OR BPT'S . MOST COMMON CAUSE HAS ALWAYS ...
August 22, 2006
2001 Mazda Millenia 2.5L MIL Lamp on VIN: JM1TA22191
P0400: EGR System Flow Malfunction. Car came in last week with a PO400,found no voltage change from Egr Sensor while driving,vacuum supply fine,no broken vacuum lines,EGR passages not restricted,moniter vacuum between EGR valve and soleniod with gauge spliced in during test drive soleniods seem ...
August 25, 2006
2001 Mazda Millenia 2.5L MIL Lamp on VIN: JM1TA22191
P0400: EGR System Flow Malfunction. Car came in last week with a PO400,found no voltage change from Egr Sensor while driving,vacuum supply fine,no broken vacuum lines,EGR passages not restricted,moniter vacuum between EGR valve and soleniod with gauge spliced in during test drive soleniods seem ...
August 28, 2006