I have Impala 2013 I have the code po18 B. Fuel pressure sensor B circuit range/ performance. But the car works normally. Should I change it? Is it located behind the left front wheel?
As usual there is more than one fix. Ha. That’s why diagnosing with just a code read isn’t the answer. Thanks for the input friend! Hope the video helped.
@@automotivated5934 right, can't always depend on the code. I once had an Envoy that was throwing an EVAP code (P0442 I think) and it ended up being a stuck fuel tank pressure sensor.
is that B47 on wiring system locator and where is PCM at? and what color wiring that connect to fuel pressure sensor? whats difference between fuel line pressure sensor signal and Fuel pressure sensor signal?
Hi , I’ve got 2011 chevy Tahoe LTZ 5.3L, and I diagnosed it with same code: P018B fuel pressure sensor, but I fail to find where it located is it close to the fuel tank, or just below the injectors? Please advise Note: I can see my Tahoe has an issue with playing RPM only in summer time after the both fans activated due to hot temp.
If you trace the bigger stainless line from fuel tank to fuel rail you will find the pressure sensor. Should be the only thing with wires to it in the line. Thanks for watching! Let me know if you need more help.
@@automotivated5934 many thanks for your help bro.. I found the fuel pressure sensor close to the gas tank 👍 one more question please Is the Map sensor on the injector side has an effect on my issue with the RPM? I was thinking to replace both the map sensor and the fuel pressure sensor please advise Thanks again 🙏
Nice vid, thanks. What is the best way to access this fuel pressure sensor on top of the fuel tank? I really do not want to take my 17 silverado to a shop..
A lot of them are still going to dealer shops being newer until a dealer shop screws them! Lol I’ll be sure to film them when customers bring them in! Thanks for the comment Mark.
Hey sorry for late response. That would be a Launch x-431 bi directional scan tool. There are many out there but I’ve had great luck with this one. Good investment if you plan on fixing your own modern vehicles.
Thanks for watching friend! Absolutely could. But the fuel pressure systems are very sensitive to throwing codes on these Chevys in my experience. Have you pulled any codes yet?
Hey thanks ace! The fuel pressure sensor is between the tank and the engine bay. Find the fuel supply line coming out of tank. Normally metal tubing. It should be the only thin with an electrical connector on that line. Good luck friend. Holler if you need me.
I believe the fuel pressure sensor is on the fuel line just in front of the tank. f01.justanswer.com/caprio23/d45c4724-2194-4b87-9eab-1225c7270d4e_2.PNG
Hey thanks for sharing. Will this FP Sensor be behind the intake manifold or in the same location as you described on a 2015 Chevy Tahoe? Theres no information anywhere online for Tahoe.
I haven’t done one on a Tahoe yet, but I would guess the fuel pressure sensor would be underneath the vehicle in front of the tank. There is normally a fuel rail pressure sensor also that is in the engine bay as you described. The fuel pressure sensor reads pressure from low pressure pump. The fuel rail pressure sensor reads pressure from the high pressure pump on all the newer GM vehicles I have seen with Direct Injection engines. Let me know if you have any other questions.
@@automotivated5934 awesome i found the sensor by the tank. Its logging P018b and P2635. Only throwing codes on hot days or hard acceleration. Not having any issues while driving, just the codes. Most likely this sensor. Could this be the flex fuel sensor? The one by the tank?
@@Eugene777fly So to set a P2635 the actual fuel pressure (read by the fuel pressure sensor) is outside of the commanded fuel pressure by at least 5 psi for more than 30 seconds. To set a P018b the pcm isnt seeing a change in the fuel pressure under different demands. Without being there to verify I would say changing the fuel pressure sensor is a safe bet.
yeah after installing a new PCM im getting this error code and a few others dealing with the fuel pressure do I have to reprogram my new pcm ? Is this why Im having this code, I tried clearing the codes with my scan tool but they keep coming back, So I replaced the fuel p sensor and the fuel pump, still getting the same code so something needs to be relearned on the PCM I believe yes? Thanks
I’m surprised that’s the only codes you have. I would lean more towards an incorrect pcm for that specific vehicle. But maybe it’s a programming issue. Sorry for late response. Did you make out ok?
What if the the car is reading no fuel pressure instead of it being maxed out because I have a 20 Camaro Zl1 with this problem but it’s not readying any pressure do you know where it’s located
@@texasmike7994 you almost need a scope to see what your crank signal looks like. Is it crashing before or after engine stall. You may even have a intermittent ground failure. Let me know what codes you have and I’ll try to help.
I’m getting code PO18B saying the Fuel Pressure Sensor. Im seing alot of videos and pretty confused. Is the sensor by the fuel tank/ pump or is it on the fuel rail below the air intake manifold? I recently got new pump installed . Thinking maybe they forgot to connect the sensor? Any help would be Appreciated.
Hey Eric what vehicle are you working on? The P018x codes for Chevy are only related to the three wire pressure sensor in the fuel line. It should be between the tank and the fuel rail under the hood. Let me know what type of vehicle and I can give you some help. Thanks for the comment Eric!
@@ericlanoix2036 I would unplug the fuel pressure sensor I show in this video then clear your codes. If you get a different code when you unplug it there is a good chance you need a new pressure sensor. Make sure you get one from GM! I’ve had bad luck with aftermarket sensors like these. Do you have a scanner that can read live data?
Would it be the same location on a 2013 silverado 1500? I'm also getting code Po18b, says to replace fuel pressure sensor, any input would be appreciated.
Hey man thanks for watching and supporting the channel! I mentioned in line two feet in front of the tank but I could have showed better footage on that. Lol. Thanks for the feedback!
If you have 2015 with 5.3 I have the part number. The one I replaced that’s on the fuel line underneath is the low pressure sensor before the fuel is bumped up in pressure by the high pressure fuel pump near the fuel rail. Please use OEM AC DELCO for sensors like this. The AC DELCO part number is 13516496.
@@automotivated5934 That site is a great tool! Never knew about that before. I did find it. Its a 2014 with the 4.3, but the part number is the same. Thanks for the help.
@@LocknLoad1360 No Problem Andrew! My main goal is to give back to the automotive society. I learned a lot from the RU-vid Automotive pros like Eric at South Main Auto. Bernie Thompson, Ivan at Pine hollow auto diagnostics, ScannerDanner. Those guys have contributed a TON and I want to do my part. Oh and I LOVE AUTO DIAGNOSTICS!! Haha
replacing a $40 sensor is way better than dropping a tank to throw a pump in and still have the same problem diagnosing the actual problem is what a mechanic SHOULD do, and you've got that down firm
Thanks a lot! I don’t like charging customers for parts they don’t need! Some garages don’t charge diagnostic time but then you pay for parts and labor you might not need. Lol. Some customers don’t like paying for a diag.because all these garages just shotgun parts. But that’s kind of a crap way of business. I want to guarantee my work and avoid comebacks!
