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Title: 2002 A8 4.2l failed obd2 read Post by: _nameless on May 23, 2014, 06:39:51 PM Well I just tried to read a a8 for a base and well... didnt work out too good. it communicates no problem but soon as it goes to read it fails... I tried mpps first it prompted me to cycle key then failed, for giggles i tried nefmoto with no luck? Anyone else run into anything similar? Unfortunately I wont have the car till monday now. I dont mind bootmode but i just dont understand why i would have a problem with this?
thanks marty Title: Re: 2002 A8 4.2l failed obd2 read Post by: k0mpresd on May 23, 2014, 06:50:47 PM what protocol in mpps did you use? i only ever use the 1.8t bosch me7.5 for anything me7. some of the others have a tendency to not work.
Title: Re: 2002 A8 4.2l failed obd2 read Post by: ddillenger on May 23, 2014, 07:01:27 PM what protocol in mpps did you use? i only ever use the 1.8t bosch me7.5 for anything me7. some of the others have a tendency to not work. What he said. Just not on the CAN ecus. Danger, danger Will Robinson. Title: Re: 2002 A8 4.2l failed obd2 read Post by: _nameless on May 23, 2014, 07:13:56 PM what protocol in mpps did you use? i only ever use the 1.8t bosch me7.5 for anything me7. some of the others have a tendency to not work. cool good to know... naw I used the Audi>A8>4.2l ME7.1.1... tried twice then tried nef with no luck... thanks for the tip thoTitle: Re: 2002 A8 4.2l failed obd2 read Post by: prj on May 29, 2014, 04:04:24 PM You are lucky the clone didn't read.
Worse is when it reads and on write bricks that ECU. Title: Re: 2002 A8 4.2l failed obd2 read Post by: edgy on May 30, 2014, 10:29:41 PM You have to "wake up" the ECU on certain A8s before you can read or write.
I can't remember the process off the top of my head, but, I'll dig it up and post it tomorrow. |