Questions tagged [fuel-system]

Fuel system covers the components of a car responsible for fuel delivery; tanks, pumps, filters, pipes. Questions on carburettors and injection systems have individual tags

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25 views

Does the electric fuel pump get damaged?

The lorry was working just fine, and suddenly it stopped on its own. We did the checks including wiring, and finally, we discovered that it was a blown fuse which was no longer supplying power to the ...
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1answer
30 views

Does weekly use of vehicle decrease concerns about gas going bad?

It's recommended to use fuel stabilizer for long-term storage. The instructions for stabilizers say to run engine for a while to properly mix with fuel and protect entire system. Does regular use ...
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1answer
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Why does it take more than a few gallons of gas for the fuel tank meter to update?

I noticed this recently with newer cars with electronic displays, in that for whatever reason, if you only add a gallon or two of gas, the fuel gauge won't update. However, if you fill it from a ...
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49cc stand-up scooter won't start fuel is flowing back in the tank instead of the carburetor

49cc stand up scooter wont start. When i prime it i can see the gas going backwards instead of to the carburetor. I have a new gas tank the carburetor is fairly new I take the spark plug out and it's ...
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40 views

Fuel pump problem

My daughter's car, a Honda Jazz, have not been used for more than 3 weeks. We replaced a new battery as the engine failed to start. Even with new battery, the engine still failed to crank. We took it ...
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33 views

Second butterfly valve in riding lawnmower?

So I am helping out my neighbor with her lawnmower, tuning it up and what not for the summer. I noticed that when running the lawnmower, as soon as you take it off of choke, it revs up as fast as it ...
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1answer
51 views

Bike not starting after filling it with petrol, but was completely empty before

My bike is a Honda dream neo-110cc It was completely empty before I refilled it with petrol. Now it's not starting. Someone told me that I needed to kick-start it. What was happening? What can be done?...
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49 views

What is the plastic plug for on the bottom of an SU HS4 Carburettor Piston?

Please could somebody explain the purpose of this plastic plug on the bottom of my SU HS4 carburettor piston? The lip of the plug protrudes very slightly from the bottom of the piston (shown bottom ...
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Mazda 6 MZR-CD diesel fuel issue

I have a mazda 6 mzr-cd turbo diesel wagon 2009 model. I just purchased the car and after trying to jump the car i thought the engine had no compression. However after trying again with a stronger ...
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1answer
52 views

What is the maximum calculated mpg the display will show

2015 Forester, manual transmission. I drive to maximize fuel economy, and have reached 31.5 mpg. And there it stays, for a LONG time, even though by the usual progression it should have incremented ...
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1answer
48 views

2 fuel pumps dying due to electrical issues?

I bought a 95 240sx se as a project car with a blacktop sr swapped in it. I bought it knowing it didn't run. It cranks but no fuel pump prime. So I replaced the fuel pump and it started up. After ...
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1answer
13 views

Hyundai i20 1.4 glide 2012 model

Evening guys, my car has a very serious problem, it consumes too much fuel and i have noticed that my rev counter is very high when driving, if am driving 100km\h the rev counter would be at 4100rpm, ...
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1answer
45 views

Why is there no power going to my fuel pump?

2003 Kia Spectra, here's the backstory : I recently changed the spark plugs and soon after doing so I tried to turn the car on and it only cranked. The owner before me probably try to work on the ...
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1answer
36 views

Low fuel pressure in Volvo S40 1999

My car is Volvo S40 1999 with 2.0 engine. The fuel pressure is on the idle at 2.2-2.3 bars (should be 2.5) and on higher rpm max. 2.6-2.7 bars (should be 3.0). When I unplug the hose that goes from ...
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59 views

Audi A4 Going Into Limp Mode

I have an Audi A4 B7 and as soon as I bought it off the lot, it started going into limp mode around 3k RPM. it doesn't go any higher than that even when I rev it. I have replaced the cam follower I ...
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47 views

Nylon fuel line pro/con?

('07 vanilla Cobalt LS) Car has pretty rusted fuel & vapor lines, with a 'small' leak in the fuel one. I'm considering just replacing the whole line, tank-to-engine with nylon. (eg, this, or ...
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44 views

Two Exact Cars, Two Live Data Graphs - What the hell does this mean?

Ford Ranger XLT 3.2L 4x4 2015 Diesel Automatic Live data from both vehicles, One on The left side is driving completely normal, the one on the right, has a loss of power, hesitation and black smoke ...
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119 views

Engine jerks at certain RPM - Misfire & fuel system over pressure [P000F, P0302]

My Audi A5 1.8t has started having some hiccups after an engine job (Changed valves, timing chain & camshaft intake side) The car starts fine, it sounds fine, but it has the following problems: ...
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56 views

Quick moving long term fuel trim

I have a 2004 Toyota Echo. It has been running pretty bad at idle, I don't have the CEL on. I scanned it and when warmed up the LTFT are up to 32%. When I rev it up to 2000-3000 rpm they will ...
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48 views

2016 Hyundai automatic Elantra cranks but won’t start

My wife went to leave for work this morning and her car won’t start. I go out and the engine turns over then grinds. Tried to jump it off but same problem. Any ideas?
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honda hornet 2005 cb600 high gasoline consumption

hi my hornet Consumed abut 1 liter for 10 kilo i have iridium spark plug and k&n air filter and modified exhaust i cleaned carburetor and still have this problem
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53 views

Toyota Starlet 4efe Runs Rich And Stalls

I have a 1994 Starlet, 4EFE motor with no modifications. Intermittently it will flood itself with petrol and stall, when the engine is idling. And is hard to start again. This happens at operating ...
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1answer
48 views

How come that with a worn MAF and lambda fuel economy suffers but there is no performance gained?

I'm trying to understand the advantages of lambda and MAF while I drive an old car, those parts are worn. How come I have loss in fuel efficiency while there is no gain in performance?
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1answer
65 views

Faulty O2 sensor identification

The car is a 2006 BMW 325i (N52B25 engine). The problem started out as a performance issue (car didn't pull quite that hard), after a while it turned into more serious issues like low rpm stuttering/...
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117 views

Mechanic said I put wrong fuel on my car, I know I didn't. What can I do? Who is to blame?

I have a Toyota Yaris hybrid from 2018. Last saturday my tank was half-way full, but I had to buy some things at the gas station and decided to purchase 7 or 8 litters of unleaded gasoline (10 euros). ...
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2answers
2k views

Fuel gauge very slow to come up after filling - anything to worry about?

After filling up my 2003 Transit campervan with diesel the other day, I noticed that the fuel gauge was very slow to respond: after 10 miles it showed 3/4 full, but eventually came up to the 100% line....
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2answers
72 views

Accidentally used fuel containing methanol while my car's manual says I should avoid it. Big deal?

I recently fueled at a gas station with a sticker on the pump saying "contain methanol". Later I found out on the manual (of my Hyundai 2017 Elantra) that fuel with methanol should be avoided. I ...
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1answer
35 views

2010 Dodge Dakota Big-horn: Engine sputters when accelerating from stop

I have a 2010 Dodge Dakota, 4.8L V8, 2WD, 129K miles. The fall temperatures are starting to get a little colder, so I've noticed something that my truck does now that it didn't used to do. When I ...
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1answer
46 views

Are the high and low fuel pressure sensors the same part?

I have a 2013 Ford Escape 1.6L se 2wd, my question is the high fuel pressure sensor and the low fuel pressure sensor the same part? My mechanic gave me a part # bm5z9f972a and the part # for the high ...
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0answers
65 views

Fuel tank pressure - leaking gases and gasoline

Hi! A pleasure coming to this site, hope I knew about it before! I own a VW Golf 4 R32 (euro), which from time to time, starts leaking gases and fuel from the fuel tank's cap. The amount of fuel ...
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26 views

fuel guage low voltage 2006 nissan altima 2.5 SE

I had the fuel pump replaced by a Nissan dealer was told this would fix problem (didn't repair) now they said it could be the fuel gauge( Nissan no longer supplies}. Engine lite comes on for about a ...
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3answers
62 views

How do I remove this fuel line connection?

This one has me fooled. I've never seen a quick connect like this without some mechanism to remove the connection. Generally you push something, remove something or use a quick connect special tool ...
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1answer
138 views

2001 Ford f-150 fires up with starting fluid, replaced fuel pump, still wont start

About a year ago my 2001 F-150 5.4 liter truck suddenly would not start, there were no warning signs, it was running fine when I stopped at Walmart on the way home from work and it never started again....
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5answers
555 views

Fuel sender works when outside of tank, but not when in tank

I've bought a 1988 Honda Accord (3rd gen) with an issue where the fuel gauge always reads full. I removed the sender unit from the tank and cleaned it with some contact cleaner (it was kind of copper ...
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1answer
24 views

94 Corvette shutting down

I have a 94 Corvettes that shut down after driving for a few minutes. I installed a new fuel pump. I think it’s the fuel relay. Only problem is I can’t locate where it is. I opened the passenger kick ...
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2answers
149 views

I put E85 gasoline into my non-flex-fuel car

Yesterday I filled my 2009 Chevrolet Cobalt's tank with E85 gas. I saw it was the cheapest at the pump, so I used it (bad idea). I then used a little more today (like 1.5 gallons) until I just ...
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0answers
42 views

My motorcycle bogs

I have a 2007 Honda shadow spirit 750. My motorcycle Boggs when I open the throttle, it idles fine. When I bought the bike the guy said the petcock was bad and that there are bigger jets installed in ...
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1answer
137 views

Location of Fuel Pump relay on '07 TSX

I'm having frequent hard starting issues & think the problem is the fuel pump relay. However, I have no idea where this is located, presumably under the dash somewhere. Anybody?
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1answer
111 views

Fuel Gauge Inaccurate

I recently purchased a used 2005 subaru forester (non-turbo). I initially noticed that the fuel gauge seemed to be dropping a little faster than what I would have expected based on the Km's traveled. ...
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0answers
17 views

Why with the addition of a gy6 50to100ccbbk,44 stroker,20mm cvk carb with 33 pilot and 105 main jets does my gy6 engine still nog down?

Gy6 50 to 100cc Tao Tao atm-a1 50 scooter. I've tried: Going up and down on jet sizes Cleaning carb Replaced carb New pod filter Advance timing 2 degrees New cdl Checked fuel flow from carb Changed ...
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0answers
9 views

Worldwide Envrionmental Products EIS 5000 Analyser: “Communication Error with IOBoard”

I have an old EIS 5000 fuel analyser which displays the error "Communication Error with IOBoard". The system was used a long time ago without problem until this problem came and was never solved. The ...
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0answers
45 views

1989 suzuki gsxr750 slingshot k

Had bike tuned up new plugs carb tuned new gas bike starts cold runs great when bike is hot will start but only idle won't rev over 1000rpm can't drive let cool down runs drives great
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1answer
33 views

Can I leave the fuel filter hose, EVAP line and all the electric lines disconnected overnight outside?

I'm in the middle of having to drop my tank to change the fuel pump but dont have enough time to finish the job before it starts to rain tonight and tomorrow. Is it safe to leave all those hoses and ...
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1answer
47 views

5 months old Royal Enfield 350 cc stopped all of the sudden

I have 5 month old Royal Enfield 350cc with only 4600 km. My bike stopped in the middle of the highway ... fuel was leaking ... I went to the service center they told me there is an issues with fuel ...
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126 views

Engine warning light P2191 / Hyundai Veloster problem starting when cold

on monday I had some issues starting the car and then an engine warning light with the code P2191. I clear the error but it appeared again. This is the starting sequence values of o2 and other: https:/...
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1answer
437 views

Engine Stalls after Filling up

I have a 2008 Hyundai Elantra, 232,000 miles on it. Just recently and happened twice already, Last week and two days ago. I filled my tank up started the car and it would stall out. I started again ...
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1answer
36 views

Why isn't my car showing a small fuel input?

I just used a fuel pump to add 3.8 liters of diesel to my car (£5) from a local Jet fuel station. However my car's analogue fuel guage hasn't moved in the slightest. I have added similar amounts ...
2
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1answer
357 views

2014 Ford Focus won't start at all

My vehicle died on me suddenly on the road today. It was stuttering for a few minutes hard prior to it dying. When I tried to jump it nothing happened at all, not a click, not a turn over, anything. ...
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1answer
23 views

04 vw beetle starting problem

This used to happen when the car was warm but now it happens all the time. When I go to start the car it just keeps turning over and does not start but I take the key out and try again and sometimes ...
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1answer
35 views

2012 Ford Escape with Flex Fuel capabilities

Can Regular gas (not containing ethanol) be used in a 2012 Ford Escape with Flex Fuel capabilities?

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