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Title: Car wont start after sitting for a month, cranks , battery fine Post by: Ptyrell on April 28, 2018, 04:46:03 AM Hi guys,
My B4 S4 wont start , was sitting for a month or so cranks fine, charged and swapped batteries. Have this DTC Address 17: Instruments Labels: 8D0-920-xxx-17.lbl Part No: 8D0 920 930 F Component: B5-KOMBIINSTR. VDO D07 Coding: 02764 Shop #: WSC 00222 VCID: 29538C00D3E23D6 Component: AUZ7Z0X1160367 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ AUZ7Z0X1160367 1 Fault Found: 01177 - Engine Control Unit 49-00 - No Communications Any ideas? Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: _nameless on April 28, 2018, 07:05:29 PM Hi guys, My B4 S4 wont start , was sitting for a month or so cranks fine, charged and swapped batteries. Have this DTC Address 17: Instruments Labels: 8D0-920-xxx-17.lbl Part No: 8D0 920 930 F Component: B5-KOMBIINSTR. VDO D07 Coding: 02764 Shop #: WSC 00222 VCID: 29538C00D3E23D6 Component: AUZ7Z0X1160367 ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ AUZ7Z0X1160367 1 Fault Found: 01177 - Engine Control Unit 49-00 - No Communications Any ideas? well it would help if you scanned the ecu and not the cluster to start. Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: Ptyrell on April 28, 2018, 07:19:59 PM That's the only error, I did scan the ECU as a single module and it had no errors. I can also read/write to the flash
Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: _nameless on April 28, 2018, 07:28:06 PM fuel pump running while cranking? if not relay / bad pump. is the cel on when you tun the key on? if not then missing switched power to ecu
Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: Ptyrell on April 28, 2018, 09:28:19 PM Thanks mate for the reply, I will get someone to crank while I listen for the fuel pump priming.
I have no CEL lights on dash, says OK Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: Ptyrell on April 28, 2018, 11:26:53 PM Cant hear the fuel pump , put a phone in there while put key to position 2 just before start. Also cranked it, nothing on phone. Its a Walbro 450 , so its pretty loud. Only done few hundred km,
I can hear relays behind the dash etc. When the key is on position 2 (not crank) the EPC and battery light is on. If I crank then stop they go away and OK is on the display Checked the fuses also. Not looking forward to pulling the fuel pump out :P Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: Ptyrell on April 29, 2018, 08:58:26 PM Here is a video of key on no crank
https://youtu.be/-PThEYR_y2s I can read the cluster eeprom and use MElogger as normal Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: Ptyrell on April 29, 2018, 09:28:29 PM Is there anyway my cluster programing has freaked? I was on H box and the ecu tune is based on M box
Nah looked at it ok Title: Re: Car wont start after sitting for a month, cranks , battery fine Post by: Ptyrell on April 30, 2018, 07:56:24 AM fuel pump running while cranking? if not relay / bad pump. is the cel on when you tun the key on? if not then missing switched power to ecu What relay controls the switched power to the ecu? |