Lincoln Navigator Low Power, P0171, P0174 - Fuel Delivery Testing

This is a perfect case study for those wanting to learn how to test for proper fuel pump pressure and operation. There were so many other good testing methods shown as well. Here is a list of them:

Topics covered
- how to use fuel trim at different RPMs to identify the type of lean condition
- O2 WOT test
- MAF WOT test
- fuel cut during the 1-2 shift as noted by the oxygen sensor signal
- fuel pressure test at idle and snap throttle
- causes of a fuel pressure bleed down problem
- purpose an operation of a fuel pump inertia switch
- how to locate fuses and relays on a Ford
- how to measure fuel pump current with a lab scope
- how to use initial turn on amperage of a DC electric motor to confirm good power and ground
- how to measure fuel pump RPM
- before and after fuel pump replacement numbers

Tools
- uActivate Circuit Performance Tester https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/uActivate-p8975.html
- PicoScope 4425 4 Channel Standard Diagnostic Kit
https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/PicoScope-4425-4-Channel-Standard-Diagnostic-Kit-p9276.html
- S.U.R. & R FPT22 Deluxe Fuel Injection Pressure Tester Kit
https://www.jbtoolsales.com/s-u-r-r-fpt22-deluxe-fuel-injection-pressure-tester-kit-1#oid=1014_1

- S.U.R. & R FPT290 Deluxe Fuel Pressure Tester Adapter Kit (works with your existing kit)
https://www.jbtoolsales.com/s-u-r-r-fpt290-deluxe-fuel-pressure-tester-adapter-kit-1#oid=1014_1
- Autel MS908PRO MaxiSYS Pro Diagnostic Automotive Tool w/J-2534 Reprogramming - USA Version
https://www.jbtoolsales.com/autel-ms908pro-maxisys-pro-diagnostic-automotive-tool-w-j-2534-reprogramming-usa-version#oid=1014_1
- uScope Master Kit 1-channel automotive scope
https://www.aeswave.com/cart.php?m=affiliate_go&affiliateID=60df1b5cf6e5582af6ff81c728f42d0d&go=https://www.aeswave.com/uScope-Master-Kit-1-channel-automotive-scope-p9273.html

Related videos
- Understanding Short Term and Long Term Fuel Trim (an SD Premium video)
https://youtu.be/oRX2V6_a3dc
- Cold Air Intake Warning! (missing air filter case study)
https://youtu.be/m-qJ58scPJE
- Causes of lean condition trouble codes P0171, P0174 - GM 5 3L
https://youtu.be/3RFTS22w6tM
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!

Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.

Видео Lincoln Navigator Low Power, P0171, P0174 - Fuel Delivery Testing канала ScannerDanner