Polo Playa Unknown problem

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Dandaman
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Polo Playa Unknown problem

Post by Dandaman » Fri Apr 20, 2018 4:17 pm

Hi VW Club, so I'm helping my brother fix his Polo playa 1.4 2001 model. the car has a problem where it takes a number of attempts to get the thing started. Once started and idling relatively steadily, when pressing the accelerator the car loses all power and cuts out. Its almost as if the car is getting no fuel as soon as you press the accelerator.

I've replaced his fuel filter, spark plugs and leads, as well as his distributor cap and rotor because at first I thought the cylinders weren't receiving spark. I've tried replacing the throttle body with my neighbor's spare, but that also made no difference. I've also removed the fuel line from the injection manifold to see if fuel is coming through when starting the car, and it is...which ruled out the fuel pump being the issue. The timing on the car is in order as well.

I've heard that the Injectors might have something to do with the problem I'm dealing with. Any other thoughts?

If the injectors are at fault I wanted to ask if anyone knows the resistance specs for this car, as I've researched a way to test them by checking their resistance with a multimeter. I think they are MP9 injectors.

P.S please excuse my ignorance, I am a humble newbie trying to learn is all.
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Ashveer03
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Re: Polo Playa Unknown problem

Post by Ashveer03 » Fri Apr 20, 2018 8:27 pm

U could have low fuel pressure or a faulty fuel pressure regulator.. only way to test that is with a fuel pressure gauge.
Thats the first thing i would do..

Maybe what u could also do is since i doubt u have a fuel pressure gauge, pinch the return line and see if the car revs up ok, if it does then u most likely need a new regulator, if it doesnt then u need to check the fuel pressure.



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Dandaman
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Re: Polo Playa Unknown problem

Post by Dandaman » Sun Apr 22, 2018 5:55 pm

Thanks for the advice I'll try that out.
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Ashveer03
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Re: Polo Playa Unknown problem

Post by Ashveer03 » Sun Apr 22, 2018 6:39 pm

Cool lets us know wats happening

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panic-mechanic
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Re: Polo Playa Unknown problem

Post by panic-mechanic » Mon Apr 23, 2018 10:41 am

Those are famous for breaking the fuel rail inner return. Pull the spring clip that holds the fuel pressure regulator and pull the regulator out. Check if the inner pipe is still secure
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Re: Polo Playa Unknown problem

Post by Brat Boy » Sat Apr 28, 2018 7:12 pm

Did you test the coil or try a different coil?
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Re: Polo Playa Unknown problem

Post by CharlDHechter » Mon Apr 30, 2018 6:46 pm

You can also try unplugging the map sensor and see if it starts and drives. Had the exact issue you are describing about 2 months ago. Tuned out to be one of the wires to my map sensor, worked 100% after I re-soldered it. I have a 2002 Classic, same same.
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