Check your EGRC Solenoid valve.
I's a problem with the EGR system and or the EGR solenoid.
Trouble code P1400 means: Differential Pressure Feedback EGR Circuit Low Input
Trouble code P1400 means: Differential Pressure Feedback EGR Circuit Low Input
Code P1400 means EGR solenoid valve or circuit fault
i think the code p1400 means exhaust gas recirculation(EGR) system/ evaporative emission(EVAP)system- valve mulfunction i think the code p1400 means exhaust gas recirculation(EGR) system/ evaporative emission(EVAP)system- valve mulfunction i think the code p1400 means exhaust gas recirculation(EGR) system/ evaporative emission(EVAP)system- valve mulfunction
DTC P1400 = Manufacturer Contrl Auxiliary Emmision Controls
The code P1400 reads "DPFE Sensor Voltage Low" (Ford, Mazda). Often it's caused by a bad DPFE sensor or clogged EGR passages. DPFE stands for (Differential Pressure Feedback EGRI) I would clean the EGR valve which cost nothing. If that does not cure the problem, you may need to replace the DPFE sensor, which does cost, and it may not fix the problem. If you want to be sure you replace the correct part, then visit your local Ford dealer. dpfe stands for delta pressure not differential.
that's egrc solenoid valve, you can go and get it check at any parts store or buy a obdII code reader and erase it if the problem persist replace the egrc solenoid, and have the code erased again it should fix the problem, althougth i had a problem like that and it wasn't the egrc, was the egr valve since goes connected to the egrc can give you that problem chek if you have a code for egr, if it shows the code i will suggest to replace the egr it's cheaper
The code P1400 for a Mercury Mountaineer indicates an issue with the "Intake Air Control System." This typically means there is a malfunction in the system responsible for controlling the air intake, possibly due to a faulty sensor, wiring issues, or a problem with the intake manifold. It’s advisable to have the vehicle diagnosed by a professional to identify the specific cause and necessary repairs.
The Chevy P1400 code indicates an issue with the Exhaust Gas Recirculation (EGR) system, specifically related to the EGR flow or the EGR valve. This code can result from a malfunctioning EGR valve, blocked passages, or issues with the EGR control circuit. It may lead to increased emissions and poor engine performance. Addressing this code typically involves inspecting the EGR system components and ensuring they are functioning correctly.
P1400 Differential Pressure Feedback EGR Circuit Low Input (Dealer TSB Number: 99103 addressed some possibles with this issue)p0135 Heater O2 Sensor1 Bank 1 (This is the first sensor nearest the engine)P0325 Knock SensorThe last code often sets with almost any other problem, there is probably nothing wrong with the knock sensor itself, it's a passive part.The O2 sensor may be bad, but it may also have a broken wire about six inches up the harness where there is a splice, this is a COMMON problem on these vehicles.The P1400 I would not worry about until you get the O2 sensor problem fixed. These codes tend to daisy-chain on these vehicles, sometimes one problem will cause 3 codes, I've seen it many times.
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