Hello guys, my brother’s Fabia has a problem. The check engine light is intermittently on and off and the only error code we get is 19586 System Regulation Limit Exceeded. The check light would go away an reappear on its own. We tried cleaning the EGR valve and swappimg the vacum box from my Fabia. If I blow air with my mouth in the Egr hose, I can see that the EGR is operating…Interestingly, if I want the light to go away for a short while, I need to disconnect the clip to the vacum box, the vacum pressure would be released, and no check engine light for the moment. Any ideas what it could be? His Fabia is stock, but I get the feeling she should be brisker on acceleration…

Edited 26 July, 20223 yr by iwcham1979

Screw that about releasing the vacum by unclipping the connection from the vacum box clearing the code part 😅 The check engine has come up again and there is no way ro clear it in that way… It will clear and come again when the car sees it fit 😂

http://wiki.ross-tech.com/wiki/index.php/19586/P3130/012592

 

You've tested the EGR valve but you need to test the PWM solenoid that actually controls it, there are two or three inside the vacuum box so make sure you test the right one.

In addition you need to be very thorough about finding any vacuum leaks, a quick visual inspection simply won't do.