This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. I think this code has nothing to do with the egr position sensor on the egr valve but a throttle position sensor somewhere else. Thanks for the quick reply. This is an expensive replacement and most likely this will not solve the issue. Regards and best of luck with it.
A plunger will then move to seal the canister vent. Its hard to relax when your driving! Note that an excessive voltage is a rare occurrence, but perform all relevant tests to ensure that the pump is receiving the correct current, which is usually equal to the battery voltage. Need help with a P0488 code? Thanks for the help in advance, Vehicle came in 3 weeks ago with a po488,checked everything in egr system and all checked good, suspected sticking egr valve. I think this code has nothing to do with the egr position sensor on the egr valve but a throttle position sensor somewhere else. If eye irritation persists: Get medical advice or attention. Also be sure to check that the fuel filter is correctly installed.
Look and see if the pendulum is opening when vacuum is applied. Cheers, Andy Sorry about that Andy, my mistake but my database only shows up to P0485 anyway. Iwas referring to code p0488 and not p0448. For example, a code 12 will be displayed by the check engine lamp flashing 1 time for approximately 1. The code will go away then one or two minutes later it comes right back.
If the pressure remains constant despite varying engine speeds, the pressure regulator is defective. Wondered if anyone could shed some light on fault code P0488. When you accelerate it opens and when you start the car it opens. Consult the manual to determine the location and routing of all fuel lines, and replace all damaged fuel lines as required. Maybe a Toyota Tech on the forum can help. Now clear the codes and test drive the vehicle.
Not to be confused with a Potentiometer which is located on the throttle body of most cars. If that's the only thing you're scanning for codes with then you need to try another scanner. Please note that the latest information on the storage temperature for the products is described on our website. If there are any, use the information to help in your diagnosis. Thanks for the help in advance, Vehicle came in 3 weeks ago with a po488,checked everything in egr system and all checked good, suspected sticking egr valve.
Diagnostic Display Code 0—1 should be indicated. It is true that a P0488 can be difficult to diagnose and repair, but it is not as difficult to fix as some other codes. If you do decide to do this yourself, be sure to research ways to repair this issue and obtain the proper diagnostic equipment before starting. The red diode will flash for 0. It is a common mistake to replace the fuel pump and other expensive components in attempts to remedy a no starting condition.
The codes are interpreted by the number of times and duration the diode flashes. The green inspection lamp function is the same as in Mode I. Enter and space open menus and escape closes them as well. Is it part of the egr valve itself or is it a completely different setup. Always repair open or shorted wiring and connectors as necessary and then retest. During an open loop condition, the green inspection lamp stays off.
Try an autozone or advance autoparts, or better yet a Ford dealer. 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. As the throttle plate is opened, sensor resistance decreases, allowing circuit voltage to increase. Take off contaminated clothing and wash it before reuse. If it does start, check the system pressure to confirm that it falls within the specified range. Remove contact lenses, if present and easy to do. I did use a auto zone scanner.
At least it doesn't on my truck. Repair all wiring found to be defective. Hi beagh cheers for reply. Step 2 Sine code P0088 indicates an excessive fuel pressure the problem is unlikely to be caused by wiring issues, unless the fuel pressure regulator is electrically operated. What are the symptoms of code P0088? If not, I would try replacing the throttle plate assembly. I now have just an elbow and the sensor wire is taped up in the engine compartment.