Question about Mitsubishi Galant
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Posted on Jan 02, 2017
SOURCE: what would cause my car
P1400 is a signal issue with the MDP ( (MDP=Manifold differential pressure) sensor and would not cause an engine no start, it is a turbocharger sensor code, so you will need to check the following things which will disable the engine from starting.
1. Do you have fuel pressure? the test port is on the top of the engine in the rail that supplies fuel to the injectors, you need a special fuel pressure test gage to check it
2. Has the timing belt failed? pull back or remove the front cover and watch the camshaft pulleys do they move when the engine is spun over with the starter
3. If you find nothing wrong in the above then check for spark, use a screw driver with a plastic handle and pull a spark plug wire off, put the end of the screwdriver in the plug boot, have someone crank the engine over while you hold the blade of the screwdriver near any metal surface on the engine, you should hear and see a spark, if not the camshaft belt has broken or the ignition system has failed, id this was the case you should have a fault code other than P1400.
Posted on Nov 17, 2010
SOURCE: EGR EVP Sensor
Right on top of the EGR, (Exhaust Gas Recirculation), valve, which is on top of the intake.
Looks like this,
Now, let's talk. The guy's and gal's at the auto parts stores, are just there to sell auto parts, not diagnose cars, pickup trucks, and so on. Nice that they try to help, but an ODB II scanner just shows generic information.
What I'm stating by that, is that you could buy that expensive part, and this may not cure your problem, and/or you could damage your computer if the procedure isn't done correctly.
The P1400 code states,
1.DPF EGR signal circuit shorted to ground
2.DPF EGR signal VREF circuit open
3.DPF EGR sensor is damaged or has failed
4.PCM has failed (Powertrain Control Module)
5.TSB 4-3-1 contains repair information for this trouble code
You need a scanner that is the NGR, (New Generation Star), or has the capability to read
Ford Enhanced Data.
This connects to the PCM in the harness. (It's located on top of the engine) If the procedure isn't done right, you can "Let the smoke out", of the PCM.
You also have to reset the computer to clear the error code.
I know shop time is expensive, but sometimes it leads to less expense in the long run.
Posted on Apr 28, 2009
P1400 on your vehicle is described as :Differential Pressure Feedback EGR Circuit Low Input You either need a new DPFE valve, or a new EGR valve. Both can be tested for functionality before replacing them both. EGR valve is more likely I think. Cleaning it may not improve its performance, but its worth a try. Also check the vacuum lines between the DPFE and EGR system. The EGR valve and DPFE are usually close together above the exhaust manifold/downpipe. you need service instructions to test these items, suggest you go to a garage really...
Posted on May 17, 2009
SOURCE: wat does code p1400 means
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.
Posted on Apr 01, 2010
Exhaust gas recirculation flow insufficient detected.
Maybe you got a bad DPFE sensor, or the pintel inside the egr valve is not opening all the way causing the insufficient flow.
Posted on May 14, 2010
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