ehodzicus78

Just to confirm, problem solved, engine heated up and still on 750 revs .....

Dear friends, today I managed to locate connector. It was under engine on same side as battery. After I disconnected connector I found broken wire on pin 3 as Wino assumed. I will post pictures. Did not tested car yet as I just finished this job but I hope it will be ok. I will post the results. And I can not find words to express my gratitude to both of you. You are great guys, thank you both

Tried to locate this connector yesterday after work but without success. I can't find that thing in engine space. Found on google that it might be under engine and next step will try to take off plasctic cover under engine to see what can I find...

Thank you very much for your effort... I am very thankful to you, I will check today after work again...

Dear Wino, yesterday I managed to check this in a way you recommend. I disconnect ECU connector, upper one and found pin 65, mark it with needle. Other end of multimeter connect to red pin on alternator connector and there is no connection at all. Other connector you mentioned not sure I identified correctly. One I found on left side as seen from cabin has 13 pins and on it there is no connection with alternator connector. I posted some pictures.

Wino I did not try your recomendation jet because I was not sure how to do it. I was afraid of disconnecting ECU connectors and how I will manage that. But I try to replace voltage regulator but with no results. Even this voltage regulator, claimed as original Bosch has 0.5 V lower voltage than the one fited by local garage. I plan to check voltage on alternator connector while engine running, I figured to use little needle to go through wire insulation and check voltage. Jet not sure how to disconnect ECU connector and other connector you mentioned but will try for sure...

Thank you Wino, I will try to check this as soon as possible and I will write the results

Hello, Recently I noticed increased revs on idle every time I stop with engine heated on operational temperature. Revs on 950 rpm like regenerating but every time I stop. Then checked with VCDS and found this error : 01117 - Generator Terminal DF Load Signal: Implausible Signal P1503 00 [096] - Implausible Signal Car is fabia mk2 2010, 1.6tdi 77KW cayc engine code. Local workshop changed voltage regulator and there is no error any more. But high revs on idle remains like before repair. Googled and found it colud be because of voltage issue when engine tries to get enough power through higher revs. I wonder would it could be some problem with new voltage regulator ? Thank you...