Question about Volkswagen Polo

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My 1991 polo stopped fueling one day and can not find the fault

Fuel will get to the injector but not past it have tried new injector and carbs but still no joy have tried 2 ecus but can not see these at fault as what is the likly hood of 2 having same fault

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  • 4 Answers

Maybe the fuel pump isn't supplying enough pressure.

Posted on Jan 09, 2016

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Posted on Jan 02, 2017

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SOURCE: engine intermittently stumbles and stalls after taking off from stop

Take carborator cleaner. First take off the big hose on the front of your intake then press gas peddal to open up and then spray it inside this fixed my problem. Jerry

Posted on Oct 13, 2008

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SOURCE: no power from fuse to fuel pump

fuel pump works fine but gage isn't working any one got any idea?

Posted on Nov 25, 2008

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SOURCE: cannot get 1987 chevy van 20 to keep running... stalls out

Best do a fuel pressure test. Should have chg. fuel filter from the get go. The only other filter is on the end of the fuel pump in tank. Bad gas and dirty gas will plug up fuel filter, hense burn pump up.

Posted on Apr 11, 2009

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I had a persistent problem of hill light warning and TCS warning lights coming on for no apparent reason. There is a wire connection between the stop light switch and the control unit to let the system know when brakes are being applied. Changing the stop light switch cured it. The replaced switch was certainly sticking and the new one was of a different design. Replaced it myself as switch comes with a wiring loom. Need to get on your back under the steering wheel! Not very expensive. My car 2001 TD4


Posted on Jun 30, 2009

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SOURCE: 90 k1500 tbi no fuel from injectors

from the sounds of it its going to be one of 3 things 1) the injector is bad or 2) there is no power getting to the injector 3) bad relay switch.

1) to find out if the injector is good. pull the injector out and with some wire ground one side and touch the other side to your battery, every time you tap the wire to the bat you should here the injector click..

2) if injector is good get a test light and test to see if power is coming out of the wires that go to injector( on some vehicles you have to have the motor turning over befor power is sent through wire, so have someone turn the key while you check the wires with test light)

Posted on Aug 15, 2009

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Has anyone checked base fuel pressure at the injectors, and have you replaced the fuel filter in the past year or so ?

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My 1991 olds mobile cutlass calais wont start,after I added fuel injector cleaner because,the car was having hesistating problems below 25 miles an hour and it might of been a spark plug problem or fuel...

When you chaged the air filter & sprayed Gumout carb cleaner, you got rid of a little gunk in the
air intake, but when you added the fuel injector cleaner (its the same stuff as carburator cleaner) to the fuel tank, you "cleaned out" ALL the ****/gunk/buildup/dirt in the fuel system which has built up since 1991 and sent it straight to the fuel filter, which is now clogged. The reason that the car tries to start, but fails, is that it'll successfully burn up any fuel that gets past the clogged fuel filter, but the engine consumes that small amount of gasoline quickly, then dies.
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It sounds to me as though you have a clogged or malfunctioning fuel pump. Depending on the engine in your car, and whether or not the engine has a carb or fuel injection system.

In most of the early 90's corvette's, there should still be a fuel filter on the fuel injection throttle body (it looks like a carb), and a fuel filter under the car on the fuel lines. I believe you'll want to check the passenger side, but follow the fuel lines to find the filter. You might only have one under the car, so don't be alarmed if you don't find a small one on the throttle body.

Try changing your fuel filters first, as this is an inexpensive way to make sure your vette is in optimum condition before you do anything else.

If fuel filter replacement doesn't work, you will want to have your fuel pump tested. The only way to DIY, is to remove the fuel pump from the lower drivers side of the engine and to blow in the "in" side with a little water and see if it puts out the fluid. Even at that it could still be bad, so if you pull the pump, plan on replacing it.

The only other realistic option is that your fuel injectors are dirty or the gaskets are bad and it is time for an injector overhaul. This is not to hard to DIY, but does take patience and attention. You can also try running some fuel injection cleaner through your engine before trying anything else to see if it helps.

Some unlikely options are that your smog pump is clogged, your catalytic converter might be bad, you EGR valve or Purge Valve is clogged, your timing is off and you need to check the spark system, or that you could have low compression.

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