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Re: 2001 vw polo
1 check your sensors 1st,all sensors must be good
2 if all sensors are working good than check your engine firing sequence,some times happens when sequence was wrong,
3 check your exhaust and carborator tuning pin that creates the batter combination for firing in bore for batter performance & less emitions ,so check is it ok or not than go to your nearest service center that havad certified mechanics,
till you read this you had solve this problem definatly,
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abs problem will be a wheel sensor. if speedo working its not the pass side one. now for the lambda sensor. if you are traveling at 70 mph for 250 miles at a time this will over heat the sensor over time. as its a 2007 and normal running over time to replace them is 10 years. most that do over 500 miles a day would need to change them with in 2 to 3 years.
Take it to an authorized dealer (or a capacitated mechanic) so they can do a full scan through the OBDII port. EPC usually means some problem in the central computer, which usually can be solved via software (Using the VAG-Com software through OBDII), the scan can also tell you other problems in your VW.
It is a wiring fault, but they are looking on the wrong end. You will need to have a VW dealer "repin" the electrical connector at the throttle body. What this means is, the dealer will take apart the connector, cut off the old pins and crimp on new ones and reassemble the connector. This is a common problem on drive by wire VW's. The dealer has a bulletin on the problem and I don't know why they missed it. They will probably have to order the connector kit however. Good luck!
Your EPC stands for "Electronic Power Control" and without it (bypassing it, as you stated), you will not be going anywhere in your car. The car MUST have the EPC on/enabled to run, as I have been told. The VW Passat does not have a throttle cable... it is controlled electronically. The EPC light means something is wrong in the drive-by-wire path, the
"gas pedal" potentiometers or the electric motor-controlled throttle
body, etc. You will need to take it to a mechanic/repair shop that is knowledgable in foreign automobiles (especially VW's) and has the appropriate tools and equipment to read any "codes" being kicked out by the computer.
I have a 2001 New Passat with the EPC light coming on randomly and it will idle high but next time I start the car it goes away. I think you will have to take it in to the dealer.
Tell him to clean the electrical connector at the throttle body with 90% rubbing alcohol. He may want to use a nylon brush on the contact pins while cleaning. I'm pretty sure the car needs a throttle adaptation performed also. Find a shop with a Vag Com scanner, they can do it for you.
I bought a 2000 polo 1.4 yesterday after having an MOT. The warning lamp came on today but the car is running fine. Whether its the Lambda sensor or just the light itself is a common fault, I think garages turn off the lights to get it through the MOT then they come on again in a day or two!
My polo 1.4i 2003 model when i start the engines it does but starts to work only three cylinder i suppose. What can i do? Will be the plugs problems? or the ignition coil? Please tell what I have to do now.
Hello, VW polos 1.0, 1.4. 1.6, suffer from carbon bulid up in the throttle bodys causing bad idling, esp the Bosch Mono-Motronic (Throttle Body Injection systems), a good clean with carb cleaner should repair the problem, also engine temp sensor replacement and idle speed control valve replacement can help idle problems.