A high-pressure fuel pressure gauge would be helpful, but quite possibly unavailable outside of a shop environment. The most obvious sign is the activation of the Check Engine light on the dashboard. I am getting the above code intermittently along with p2293 fuel pressure regulator 2 performance , when looking at measuring block 106 , field 1 fuel rail pressure is 49 bar so it is ok , but field 2 electric fuel pump duty cycle is at 80% and should be 50% ish. Not sure if it's the e85 tune or not. Some vehicles have it built in to their fuel rail assembly, while others come with a return-less fuel supply as part of their fuel pump module inside its tank. Check these in comparison with expected values. Anyone have any clue what this is? Ross-Tech is not affiliated with the Volkswagen Group in any way.
I'm not sure ignoring it is the best Idea. Common Misdiagnosis Often the fuel pressure regulator is replaced in error when the fuel rail sensor is defective. Possible Causes Error Code P0089 is usually a mechanical fault which, most of the time, can be attributed to the defective electronic fuel pressure regulator or it can be a case of faulty fuel pump. A higher lph fuel pump may solve the issue for us but I would be interested to see the injector duty cycle. If other than the P0089 there are other problems that concerns lean oxygen sensor present, then the former must be solved first.
For proper diagnosis, you will need a manual fuel pressure test kit for accurate testing of fuel pressure settings to be taken at the fuel rail, and professional level scan tool to get vital information such as fuel pressure, sensor data, voltage and ohms. Check your repair manual for the proper specification. Ross wiki says likely a fuel filter or in tank pump issue , electric pump pressure is only 4. Common Symptoms Depending on the make and type of the vehicle, you may experience a series of drivability issues and undesirable problems. They happen when steps are not followed in order or are skipped completely.
YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Look up the other , please use the search box. This is critical for accurate testing. Some of these regulate how much fuel enters the pump itself, while others regulate how much fuel bleeds back to the tank, via the fuel-return line. The other symptoms such as poor vehicle running, misfire, lean, and rich conditions can cause the vehicle to become unsafe to drive. Took me about 30 minutes total to switch it out. The problem may cause various problems due to the fuel pressure being too low or high, if the sensor is failing or failed.
With mileage on vehicle and condition of exterior mounted module we suggested new fuel pump assembly and updated module assembly. The currently selected is for the Buick makes. The only e85 stations I fill up at are Mobil. All information on this site is the opinion of its members and not the opinion of the site itself. Supply pump failure causes a similar situation, but do not condemn the supply pump until you have tested it, as some failure modes cut off the supply pump when there are problems detected in the high-pressure system. So while stations where you drive may never give you an issue, another in a station you will never go to might cause a lean code for someone else. A blockage in the fuel tank or plugged fuel filter could cause this fault excessive vacuum in fuel line.
. The other tool required is a professional level scan tool. If the fuel level gauge is not working properly, the likelihood of this misdiagnosis becomes more prominent. What are the symptoms of code P0089? If all seems well upon visual inspection, the vehicle will now be tested for test port. Read Also Fault Code Problem Solution Subscribe Our Channel. Code Set Parameters When fuel pressure is not within a predetermined range as determined by the vehicle manufacturer , a trouble code will be stored and a service engine soon lamp may be illuminated. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle.
This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. At this point I think I will focus on the Downpipe next and hold on ethanol until we see better data. I viewed 15 different sites with 15 different answers. When the code returns, the mechanic will then conduct a visual inspection of the vehicle and look for signs of damage, restriction or leaks along the fuel lines and fuel pressure regulator. That takes just about all the headroom built into the system. Vehicle originally came in crank no start. Additional comments for consideration regarding the P2293 code Code P2293 is caused most commonly from erratic fuel pressure from the filter being clogged or the fuel pump failing intermittently.
These terms are used for identification purposes only. Enter the 5 character trouble codes in the search box and submit the search. What causes the P2293 code? Maybe if there's a fuel pump re-wire or something that can easily alleviate this issue, I will go back to it. If your are for a different car, select that vehicle series before searching for the diagnostic codes because not all used by one manufacture are used by the other makes. The information contained on this site is presented for informational purposes only. I'm asking since I run the tune now on 93 octane and will buy the E85 tune in June to be sure the cold weather is gone.
Some models require multiple failure cycles in order for a service engine soon lamp to be illuminated and others will illuminate the service engine soon lamp on the initial failure. Abnormal wear results on the cam lobes or the cam follower, sometimes even damaging the pump itself. I understand the 15% additives that E85 has can vary from station to station. Btw - my local performance shop recommended E47 for my T-07. I have a smog check coming up soon and do not have a clue where to begin to fix it.
How serious is the P2293 code? I was reluctant at first to have the E47 tune because of the inconvenience of having to split the fill up every time, but after what happened I completely changed my mind. What are the symptoms of the P2293 code? I keep getting more and more evidence that my first suspicion was right. If an engine has been replaced on some vehicles, then verify that the new fuel pressure regulator sensor part numbers are the same or it will set a code. If you have any doubt as to repairs on your vehicle, please contact your technician. So I was merging onto the highway and all of the sudden I lose power and the Service stabilitrac and engine light come on. As the mechanical fuel pump is mounted on the cam shaft, it is constantly pumping. Wildlife damage to system circuitry and components is common on this area of the engine.