How to test a fuel pump on a 2000 Ford Taurus Electronic Returnless Fuel System. How to test a fuel pump driver module.
Ford Electronic Returnless Fuel System Diagnosis (Part 1)
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diagnosis, Electronic, Ford, Fuel, Part, Returnless, System
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Thanks so much!! I have two check engine codes the P0191 and P1237. The
P1237 code is for the fuel pump secondary circuit (Fuel pump driver
module). Could my module be bad then according to the check engine
code? And the P0191 is the fuel pressure sensor, now at the end of your
video you did not go into the sensor. I need to check the sensor but have
no idea where it is. somewhere on the fuel rail I would imagine? Could you
help me pinpoint it? by the way I have a 2000 F Taurus 3.0 V.6 DOHC. In
this video, there is no fuel regulator as you said, I can’t seem to find
one in the car either can you confirm this? Thank you so much!!! Please get
back to me asap!!! Thank you so much!!
Way too much input to the the do it yourself for way too much time spent
the mechanic. But ok cool you spent all that time to find out it was a bad
fuel pump trying to help my wife to under stand cars and what i do
Excellent video, got the same car with what looks like the same problem,
hopefully it is
It’s a 99 cobra
Thanks Dan, lots of information, but very helpful information.
Hey scannerdanneri have an 06 ford f150 and it is a no start the driver
module was broken so I replaced it the I checked all the wires and
everything is getting ground and power where it should but the pump still
doesn’t kick on unless I power it directly w the power probe any advice
would be helpful the only other thing I don’t understand is the driver
circuits
I need help bad just put my motor back in went to start it started idled
really rough and then dies out i’m pulling up a code p1235 dropped my tank
pulled my fuel pump out tested that and it runs off a 12v battery replaced
my driver fuel pump module the one wire that you test when you start the
ignition and it drops down to zero that stays a constant 12 V one trying to
start any info would be greatly appreciated if you have a phone number
where I could talk to you directly that would be awesome
thank you!
so the fuel pump is modulated like a epc solenoid /force motor in a
transmission thanks for the help i am a transmission tech so when i have
other problems i some times need a little help
Does this car have a (FRPS) Fuel Rail Pressure Sensor ?Could you show how
to test that ?
EXCELLENT! Can you tell me?… 2000 Taurus, no FP prime at KO; At the FPDM
I have 12V in from inertia switch at KOEO, 12V at White/red (to FP) and 12V
at Black/pink (FP ground) which drops to 0.45V on crank and then returns to
12V. Again, no FP prime at KO. Does this indicate dead FP?
the rail pressure sensor is the only “feedback” signal but the PCM uses all
of the other inputs to determine what the ideal pressure should be
Good vid. i would think that this kind of pump would last longer than pumps
that run at full speed all of the time, not less as someone else said,
since there would be less wear and tear, less r-p-m-s..
Yah. First view and comment!!
HI PAUL i wrote you like a month ago on my 2005 nissan pathfinder getting
STfueltrim 11 to 12 and my LONGfueltrim 9.4 and my o2 reading lean bank 1
and very poor mpg about 9.5. i just went an change the o2 wide band, no
luck.Today i have tdc 340 i went n change camshaft p.s for bank 1 and back
to nomal my MPG it now at 15.2,im really HAPPY .THANK YOU FOR ALL YOUR
VIDEOS …
Thanks ScannerDanner! I have a ’03 Taurus with an intermittent start
condition. I don’t have a correct manual on hand and this is a great help
to get to the issue. I couldn’t find the fuel pump control module on the
car to troubleshoot it. Awesome help!
@bobby8926 Good question, I have to say that I am not seeing these pumps
fail any more than a conventional one.
when i am checking for grounds i look to see if there is continuity to
body, would that be an acceptable way of checking? I also check for
amperage on the power wires because continuity can be biased and doesn’t
measure current
i did your method of checking spark using a test light, and i got no
spark, i hear the fuel pump start when i put KOEO, i just want to ask some
advice what to check next 2005 explorer xlt 4.0 flex non sporttrac thanks
for the vids, learned a lot!
@NOEISY1 Are you having any driveability problems? Both upstream O2 sensors
should be switching rich lean. It sounds like your bank 1 O2 is not. But I
would be careful about putting an O2 in this as a small vacuum leak on bank
1 could cause this condition too.
im not sure. look on the fuel rail, if you see a pressure sensor then it is
this system
Great video, very informative. Better than many manufacturer training
videos.
Do these have advantages over the pressure regulator type of systems?
Great man, glad to here it. Sorry I didn’t help you with that one.
is this a less reliable system than normal ones?
It does and I can on a different car in the future as this one is fixed and
back to the customer. Testing is identical to any pressure sensor. 5v
reference, signal and a ground. Signal voltage is analog and changes in
proportion to fuel rail pressure. Low voltage, around .5 volt = 0 psi (if I
remember correctly)
did all the Diagnosis on the black box module connecters and the inertia
switch and everything passed…So what the HELL is up with this car? anyone
thinks it’s the Fuel pump? or something else? Any feedback is appreciated
That particular Ford Sudan is a piece of CRAP!
Great video, very helpful
@ScannerDanner but is the pump more prone to failure because its always
changing speeds? in general does the pumps on these systems go bad more
often than a normal single speed system?
@TALAMANCA17 Costa Rica? You guys have Fords down there? Forgive my
ignorance if you do.
Excellent video, but I must say I was horrified by your fuzzy finger, what
is the world coming to?
You can buy simpler meters-with oscilloscope functionality-for a lot less
than $3,000.00.
This is how you recognize a great instructor..As the video was going i was
coming up with questions (why? what about? what if?) and by the end of the
video all of my questions were answered. Much props to you Mr Danner.
Hector from Los Angeles California..East to West education baby!!!!
good one
ok. it felt like it
I have a 2000 Merc Sable. P1237 code came up(car still runs) did the test
on the module, and when I got a low voltage on the ground wire(red w/black
tracer) after cranking, I banged on the tank to see if the voltage would
come up, it didn’t. Does it still mean that I have a bad pump? even though
the car still runs? THX