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- เผยแพร่เมื่อ 19 ก.ค. 2024
- VW Polo EPC Light Fix www.ionhowto.com/epc-light-on...
How to fix the EPC warning light on a Volkswagen VW Polo 9N (2003 model).
Engine code: AZQ
VW EPC Light Car Shaking in VW Polo 9N 2003 1.2 AZQ Check Throttle body connector. Throttle goes up and down.
Remove the throttle body connector from the throttle body housing and re-insert it into the throttle body.
When you reinstall the connector make sure it clicks back in place so it does not get unplugged or loose while you are driving.
No tools needed, no spray needed and nothing else needed other than your hands.
Do this if the EPC warning light stays on • EPC Light Fix in VW Po...
The throttle body connector is responsible to send to the car ECU data about the throttle position using the throttle positioning sensor.
Multiple sensors work together to feed the car ECU real-time data about the state of the throttle body flap.
The throttle body flap adjusts the amount of air intake into the engine and this mixed with the fuel injectors and ignition system makes the car engine rev-up or down as you press the gas pedal.
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The problem is while driving, the EPC light turns on and the car runs poorly. The fuel trim becomes rich. It smells like petrol behind the car. This is the limp home mode that allows you to drive the car home.
If you stop the engine, the EPC warning light might go away or stay and after turning the ignition on in the car, the engine keeps revving up and down while in idle. The car cannot be driven at this point and it must be fixed.
These symptoms together with the EPC light and OBD2 scanner or VAG-COM error codes related to the throttle body mean there is an error with the throttle body itself which can be expensive or with the electrical wiring near the throttle body.
At this point it's a good idea to check the electrical connections on the throttle body. Steps shown in the video. You can use WD-40 to spray on the connector before re-inserting it but if you are on the road and don't have spray, it's enough to remove and re-insert the connector to improve electrical contacts connection.
After you get back home, you can check VAG-COM VCDS Engine codes for throttle positioning sensors.
Engine faults found with the OBD scanner
17580 - Angle Sensor 2 for Throttle Actuator (G188) Signal too Low
P1172 - 35-10 - - - Intermittent
17952 Throttle Actuation Potentiometer Signal too High
P1544 - 35-10 this one is also Intermittent
Chapters:
0:00 EPC Light Problem
0:25 EPC Light and RPM going up and down on engine start
1:25 How to Fix the EPC Problem on VW Polo 9N engine revving by itself
1:38 Drive-by-wire throttle body
1:52 Unplug and Re-Insert Electrical connector wiring
2:19 Check if EPC light is gone and engine runs smoothly
2:50 Why the EPC light problems can happen
Watch the video carefully without skipping to see all the steps needed in this video.
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Thank you will try this and look at the throttle body closely. In the past I replaced an ignition coil after OBD2 error msg pointed to cylinder 4 which also worked.
Nice timing. Mine has been on for ages and I refuse to pay someone to check it! Thanks!
It's bad to drive with epc on if the problem is the fuel /ignition system. Might consume more fuel in limp-home-mode.
EPC could be also because of other reasons and those may be easier to delay.
Thank you so much for the formation
inhonho estou com esse problema amigo, vou fazer isso para ver si resolve. Obg my friend. Estou em UK tmj
Thanks, it worked on me VW Polo 9N 1.4 year 2004
Nice
Thank you. I got a yellow EPC and Engine management lights on randomly but car works as ussual. I will try this and edit this post
mine as well on my golf six just comes on and car rides in limp mode
Was exactly this. 😊 thank you
Nice! Best fix is the easiest!
Thanks!
Thanks bro keep on helping
Hello dear, my car lights EPC after i start driving if i press on fuel on the level 1-2-3 gear in the morning, but it does not get crazy with the RPM it only make the car heavier, then when i switch off and switch on its gone and never get back if the the car temperature is on its normal, so should i do what you did here?
Could try the steps in the vide when it happens and do a obd2 scan to see what codes are showing for the ecu / engine.
How is the performens
I have try the method with my vw mk4 but it didn’t work
Thank you so much for this,the video helped however this EPC keeps on coming back and does not accelerate and i continuously have to do this.How can this be fixed completely?
It should not do it often if you use wd-40.
@@IONHowTo Thank you let me go and get it and how do i use it?
@@user-ih4yv1yf7h remove the connector and spray in both sides, watch this too th-cam.com/video/nPE0NM_VOg4/w-d-xo.html
Замени дросельною заслонку
I'm currently having the same issue
Greetings....how can I fix the EPC light for my vw tiguan 2017 model. The machenic saidni must get a new throttle body
Your mechanic might be right but you could try this in your car too.
The steps I do should work for your car too.
The difference will be the throttle body connector.
Once you find it try the video steps and also to be extra careful, buy some carb spray and with the throttle body open - no air filter, wipe the outside and inside of the throttle body with a lint free cloth or paper towels first if it's really black and dirty inside.
Then start the car and while idling, spray Carb spray only into the throttle body from about 20 cm and in very short bursts 1/4 second - a quarter of a srcond - as short as you can.
The engine will be revving up when you spray but if you spray too much it will stall the engine.
Best is to let your mechanic fix it though.
@@IONHowTo ok thanks let me try it then....will update...
Im currently have the same issue as well
Mine it idle perfect but when you high reff it it fails
Any solution ? Something similar happens to me
It’s because the temperature in Bombay is effecting it .
Can i do the same in polo tsi 2020?
It's worth trying but I don't know if you can access the throttle body easily on that car.
If you still have warranty, take it to them to fix it.
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Hi I cannot find it on a polo fromm 2001 😂 someone can help
Usually it`s not that easy! You need to remove the engine plastic cover , the throtlle body also and clean it! 😉
Next time you get the epc light, try it as you see it in the video and update.
But mane is doing this all the time eash 😢