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14-07-2007, 10:31 PM | #1 | ||
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Join Date: Jul 2007
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Hi All,
I have a 2000 series 1 AU Wagon I6 that runs rough and blows black smoke after I completely fill it up. Do you think the car has a sensor problem or have I just overfilled it? The car runs fine after about 20 k's from when it was last refueled. Great forum ! Lots of valuable info. |
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14-07-2007, 10:34 PM | #2 | |||
AFF's 1st DM.......
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If the fuel is overflowing into the charcoal canister that'd be the problem mate.....Theres no room for the fuel to expand and pushes the fuel to the c/c
Welcome to the boards buddy
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14-07-2007, 10:34 PM | #3 | ||
not here much anymore
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What sort of fuel are you putting into it, is it regular unleaded, premium etc?
How many kms, when was last oil change?
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2024 F150 XLT
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14-07-2007, 10:51 PM | #4 | ||
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Thanks for the welcome and the quick reply's.
SVO347: Thanks for the info. How could I check to see if the charcoal canister has fuel in it? B2tf: Hope this helps. The car is run on V power and Optimax before that. Its been serviced regularly and has 212000 K's on the clock. Most of my driving is freeway cycle. |
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14-07-2007, 10:52 PM | #5 | |||
not here much anymore
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Quote:
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14-07-2007, 10:56 PM | #6 | ||
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V power no good ?
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14-07-2007, 10:57 PM | #7 | |||
not here much anymore
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Location: Sthn NSW
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Quote:
Getting back to your problem, try an oil change, change fuel filter too.
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14-07-2007, 11:04 PM | #8 | ||
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b2tf: Thanks for the info. I've just done a service, Oil change and filter etc.
I'll top the car up in the morning and see how it goes. |
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15-07-2007, 12:12 AM | #9 | ||
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Location: Merrylands Sydney
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I think you arer overfilling it mate. What happens is the the return hose from the rail blocks up with fuel and has problems returning it to the tank.The result is black smoke,hesitation on acceleration .This normally clears when you use a bit of fuel
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15-07-2007, 12:33 AM | #10 | ||
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sureley overfilling wouldnt be the cause. I couldnt see how the pressure in the tank could increase so much as to have the result of increasing fuel rail pressure over the fuel reg, especialy before it overflows from the filler nozzle.
The carbon canister theory makes sence, but I would have thought any increase in richness from here would be combatted by lower fuel injection as a result of the oxy sensors signal, and was under the impression the carbon canistor only cycled under certain revs/conditions. Having said that, if it does only do it after a re-fill, those 2 theories seem like the only possibilitys, even though to me they also seem impossible. you have an annomoly! could it be gunk in the tank thats getting stirred up when you refill?? - no that doesnt make sence either........hmmmm
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15-07-2007, 12:35 AM | #11 | ||
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Thanks Stav. I think you and SVO347 are right as it clears itself after I've done a few K's.
It can be a bit of a buggar to fill. The pump at the petrol station clicks off when the tanks a little over three quarters full. So I keep filling it as you don't realy know when it is full. So its easy to over fill it then. Thanks for everyones input. |
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15-07-2007, 12:41 AM | #12 | ||
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I've just remembered a bit more info. It starts to play up after I've travelled about half a K from the petrol station after the refill.
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15-07-2007, 09:10 AM | #13 | ||
Walking with God
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Location: Melbourne
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Is it possible that your fuel gauge is out and the click off when filling is actually when it's full?
I guess the answer to that question lies in how many litres does it take at the click off point and how low was the tank when you were filling. All the best with it. GK
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15-07-2007, 09:59 AM | #14 | |||
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Quote:
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Stingray Car Security ph 0414445444 Single din radio fascias for fg to fgx fords Australia wide . FG 1 2 and 3 gauge holder in stock now! https://stingraycar.com.au/shop/ Site Sponsor See Sponsor Stingray Car Security 😍👌✌ AU wagon 6 14.241@96.75 1/4 mile sold.Octane fg xr6 turbo!! 12.312 112.21 mph home tune f6 injectors gone ..now in nitro fgxr6t ready to go again |
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15-07-2007, 10:53 AM | #15 | ||
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O2 sensor? map sensor? FPR?
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N12 Pulsar - sold Gen1 Liberty Turbo - sold VP Commodore Turbo - sold LN65 Hilux Turbo - sold EL31 Corolla Turbo - sold Ford AU Ute Turbo - sold Ford AU XR8 Sedan - 5.4l V8 Turbo (in the build) Ford BA XR6T Ute - daily driver Ford FG XR6T Sedan - cruiser do you see a general trend? I DO Can't live with it, can't live without it! |
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15-07-2007, 11:31 AM | #16 | ||
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Join Date: Jul 2007
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Hi GK,
I do over a 100 k's a day to work and back so I tend to run the tank down to the 80 k's to go (or lower) on the trip computer. So the cars normally filled every seven days with about 80 Litres. The Pump can click off at about 45 litres so I keep filling it. So I dont think its a gauge issue. Thanks for your input. Hi Stav, Yes thats exactly what happens. If I dont fill up during the normal cycle (earlier then the normal weekly fill up) and I have inadvertantly filled it up to the neck thats when it does it. |
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15-07-2007, 04:44 PM | #17 | ||
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Sorry Guys I should have said 60 Litres not 80 Litres to refuel the car.
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15-07-2007, 05:47 PM | #18 | |||
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Location: SA
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Quote:
The part I just cant get my head around though is why the pressure wouldnt be released, and how it could be so great that the return line pressure is increased greater than the fuel rail as a result of it I just figured as the fuel pump pumps fuel out of the tank into the fuel line, there would now be a negative (reduced) pressure in the tank, and would almost go so far as to create a vacuum making it easier for the excess fuel to return to the tank, and would have expected the return lines to be pretty full all the time anyway. to me that seemed impossible, but on the other hand, its also seems like the only plausible explanation to fit the symptoms, so it tripped me out.
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15-07-2007, 05:52 PM | #19 | ||
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EviLchief, PLease explain O2 sensor ?, Map sensor ? The Fuel Pump Relay works fine !
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15-07-2007, 05:57 PM | #20 | ||
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Hi robbo_yobbo,
Yes I know what you mean the symptoms are unreal. I was wondering if I can check the charcoal canister some how ? |
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15-07-2007, 07:28 PM | #21 | |||
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Quote:
any of those sensors or "fuel pressure regulator" would explain your symtoms if any of them is malfunctioning. If the O2 sensor in your exhaust is malfunction, the ecu will be able to enter close loop cycle, which pulls down the fuel injection cycle to match as close to 14:1 AFR as possible, hence excessive fuel consumption and excessive black smoke. If the map sensor malfunctions, the ecu is unable to determine the absolute manifold pressure and is unable to corectly caluclate the correct amount of air require for current acceleration, decelaration or cruise status, once again resulting in excessive fuel injection cycles, hence poor fuel economy and black smoke. if the diaphrame in the fuel pressure regulator is stuffed, or vac hose fallen off, fuel pressure increases automatically to max preset pressure (around 50 to 55 psi), instead of being alternating dependant on manifold vacuume at work i would retrieve error codes from the ecu, in order to possibly get an indication if any of the sensors is malfunctioning, i can also check of current readouts of all sensors at the time.
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N12 Pulsar - sold Gen1 Liberty Turbo - sold VP Commodore Turbo - sold LN65 Hilux Turbo - sold EL31 Corolla Turbo - sold Ford AU Ute Turbo - sold Ford AU XR8 Sedan - 5.4l V8 Turbo (in the build) Ford BA XR6T Ute - daily driver Ford FG XR6T Sedan - cruiser do you see a general trend? I DO Can't live with it, can't live without it! |
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15-07-2007, 07:39 PM | #22 | |||
Kick out tha Jams
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Quote:
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$416.80.......All that cash came from a new (used) car. Check your back seats! |
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15-07-2007, 07:42 PM | #23 | ||
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oh ... i thought it was permanent ... ah well
which reminds me, there is a little pressure relief solonoid close to the carbon cannister. just check if its plugged in or wires are damaged
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N12 Pulsar - sold Gen1 Liberty Turbo - sold VP Commodore Turbo - sold LN65 Hilux Turbo - sold EL31 Corolla Turbo - sold Ford AU Ute Turbo - sold Ford AU XR8 Sedan - 5.4l V8 Turbo (in the build) Ford BA XR6T Ute - daily driver Ford FG XR6T Sedan - cruiser do you see a general trend? I DO Can't live with it, can't live without it! |
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18-07-2007, 04:07 PM | #24 | ||
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Join Date: Jul 2007
Posts: 43
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Hi EvilChief,
I had a look at the pressure relief solenoid near the carbon cannister and the plug and wiring this afternoon. All looks OK. Any way of testing the system? Regards, SilverAU. |
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