Vw polo epc

In a few words: The EPC warning light comes on to indicate that there is a problem with the electronic system that controls the engine, vw polo epc. You should take into account that the problem may go from a burnt out headlight bulb to throttle failure.

Post by Nodster » Fri Apr 03, am. Post by monkeyhanger » Fri Apr 03, pm. Post by Nodster » Fri Apr 03, pm. Post by silverhairs » Fri Apr 03, pm. Post by stuartrendall » Fri Apr 03, pm. Post by Chungster » Fri Apr 03, pm.

Vw polo epc

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Post by Nodster » Mon Aug 31, pm Never fedback what the issue was. The car is probably in limp mode.

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In a few words: The EPC warning light comes on to indicate that there is a problem with the electronic system that controls the engine. You should take into account that the problem may go from a burnt out headlight bulb to throttle failure. For this reason, trying to find the problem any other way may be a troublesome task. In these cases, the throttle will have a TPS Throttle Position Sensor and an actuator electric engine , that is to say, there are no mechanical connections between the throttle and the engine of the car. As a consequence, the EPC is in charge of the regulation of the throttle body according, mainly, to a signal sent by the throttle sensor. This is how fuel consumption and emissions are decreased. This system is also powered by the signals of auxiliary sensors such as the crankshaft position sensor CKP , the manifold absolute pressure MAP sensor, the mass air flow MAF sensor and the knock sensor, among others. This warning light will turn on briefly when you turn the ignition key and then it will turn off, which indicates that the light works properly. If the warning light is still on even after the car has been started or if it comes on while you are driving, that means that there is a problem with the acceleration system.

Vw polo epc

Seeing this can be somewhat alarming, but what does the EPC light really mean? Continue reading to discover more! It means there is a trouble code stored in the EPC system. The Electronic Power Control system is monitored by the engine control unit , brake control unit, transmission control unit, and steering control unit.

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Search your problem. This system is also powered by the signals of auxiliary sensors such as the crankshaft position sensor CKP , the manifold absolute pressure MAP sensor, the mass air flow MAF sensor and the knock sensor, among others. Was this information useful? How much is a new MAF sensor? So pushed it on and tightened the clip. Post by monkeyhanger » Fri Apr 03, pm Sounds like the MAF sensor thinks the car is getting more or less air than it actually is and either getting an implausible value and reverting to limp mode if it does that immediately on the fly, that could be your "thump" - massive engine braking effect from a car that is suddenly starved of fuel at rpm in a low gear. The severity of the problem and the accompanying symptoms may vary significantly, which is why it is important to scan the car as soon as possible to know its error codes and begin the reparation process. Louder than normal upshift pops? The last two items happen because of the way the Engine Control Unit the main computer is programmed. Have you found an error in this guide? In addition, your car may jerk, have combustion issues or loss of power. Absolutely amazing! The car drives fine in D. Post by monkeyhanger » Fri Apr 03, pm. A new car like that if it has a problem now may as well get it out of the way instead of it happening months or years down the line.

Many Volkswagen owners have encountered this issue, and, at first glance, it can seem fairly daunting. With a bit of knowledge and some troubleshooting tips, you can quickly find out what caused this warning to appear on your vehicle — and more importantly — how to fix it! First things first, what exactly is the EPC light?

Related guides. For this reason, trying to find the problem any other way may be a troublesome task. He said if I hadn't done what I had done we may have never have found it, or worse, it could have blown off whilst going down a motorway etc. It was unscrewed and hanging on the pipe. Very thorough examination of everything. How loud were the exhaust pops? I wonder what has gone wrong. Flicked it to M and put my foot down in M3 and it hit 5k rpm and I heard a clunk from the engine bay, car lurched forward and I got some pops from the exhaust. Temperature Volkswagen Polo Hatchback. Turned the car off and back on but the lights are still there and the issue still remains. Post by Nodster » Mon Aug 31, pm Never fedback what the issue was. So I think it must be in some sort of protection mode. Taking into account that the electronic acceleration system interacts with other systems of the car, it is possible that other warning lights will come on on the dashboard, such as the check engine light or the electronic stability control light , which appear below:. And this wasn't off due to me, the clip had never been tightened.