In some applications the pressure regulator is located on the fuel rail and operated by a spring with vacuum assistance obtained from the inlet manifold. While you have changed every thing covered in the causes I suggest you have a look for a common point that the pipes run together that could be kinked or squashed. Is this the truth or have some of you guys replaced fuel rail pressure sensors or any other sensors and fixed the issue? Then guess what engine light comes on, limp mode. The pressure between the filter and the rail will be lower than normal or absent because the filter might not allow a reverse flow. How do you troubleshoot code P0088? Lew That P0088 code is not a code that you wanna see. Consult the manual to determine the location of the pressure regulator. If this line is restricted due to damage of some kind, the pressure in the system cannot be relieved effectively.
I spoke with the diesel mechanic who did the job and he said they cannot get a new pump anymore for this engine 6. Apparently diesel engine oil has certain specifications? Went to Auto Zone, pulled code P0088. I did not use the o-ring from the old part I found one 1 side down that fit tight around the new part. Repair all wiring found to be defective. So I've read alot about this fuel pressure to high at the rail code and can't find my answer. Since the fuel pump is running, it means that the problem usually does not involve electrical issues.
The symptoms listed above make the vehicle unsafe to drive, so you should consult a mechanic as soon as possible before getting back on the road. I understand that the re-flash simply widens the parameters on the fuel rail pressure. Step 5 If the vehicle cannot start, it is most likely because the excessive fuel pressure is deactivating the pump. I've had that code for 4 mos ,waiting to let the dealer chase it. They are showing the code. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. I've listed Ford's procedure below.
What repairs can fix the P0088 code? Consult the manual to determine the location and routing of all fuel lines, and replace all damaged fuel lines as required. If you're under warranty, no big deal. Replacing those cleared the code, so hopefully all is fine now. This is not always easy to determine, so if the vehicle does not start when code P0088 is present, and the pressure regulator is located inside the fuel tank, the best course of action is to remove the pump canister from the tank. Warranty coverage limits are determined by the identified causal part. Regardless, one of my filters was almost completely clogged.
A loose o-ring is going to weak air too. If the pressure remains constant despite varying engine speeds, the pressure regulator is defective. I take it to the ford dealer, scanner pulled P0088 and the water separator code again. The truck has 36,120 miles. It hasn't thrown any codes since the pump was replaced. If it does start, check the system pressure to confirm that it falls within the specified range.
Would like to know the final solution on this. If this re-flash widens the parameters and the fuel pump can take the strain, I have no problem with the re-flash. I'm at the Ford dealership to have my P0088 code diagnosed. P0088 can be a serious code but one that is not seen very commonly. Get the flash it is the correct route. The mechanics said they noticed it too, but did not feel that it was alarming at all. So i got a little piece of mind! I drain the sump every two weeks, and I've yet to see any water.
Step 1 Begin the diagnostic procedure by recording all stored fault codes and available freeze frame data. In practice, it is more common for defective fuel pressure sensors to set low fuel pressure related codes. As far as your cruise control intermittantly not working, it could be a couple things, but my guess would be a brake switch fault. If you're paying out of pocket it's gunna hurt! No - do not continue with this procedure. It is a common mistake to replace the fuel pump and other expensive components in attempts to remedy a no starting condition. The cut-away drawing below shows the typical construction of a fuel rail-mounted fuel pressure regulator. Defective pressure sensors can deactivate the fuel pump on some applications, so be sure to check the operation of this sensor in conjunction with the actual fuel pressure if the vehicle can start.
What causes the P0088 code? Any input regarding this would be appreciated. Step 4 If the pressure regulator is located on the fuel rail, it is likely to be spring operated, but supplied with vacuum assistance. They said that the noise is present on a number of trucks they maintain, but if it gets worse, it should be looked into. It was done under the engine warranty - cost was zero. They are also saying it could be the high pressue fuel pump.