[s-cars] Help! Car won't start...Follow-up

[dgraber460 at aol.com]

Finally was able to dump the codes last night, and sure enough - its the CPS..... again!!


Dennis 
Denver



-----Original Message-----
From: dgraber460 at aol.com
To: trgreen at comcast.net; jc at j2c3.com
Cc: s-car-list at audifans.com
Sent: Sat, May 14, 2011 11:18 am
Subject: Re: [s-cars] Help! Car won't start...



ents;
n this subject, my 95 S6 exhibited some strange behavior last night.
hut it off briefly, and on trying to re-start, it twice cranked and cranked but 
o spark. I have already replaced the CPS so I didn't think that was it. Knowing 
he ignition switch is another Achilles heel with these (on its third) I jiggled 
nd wiggled the switch and tried again and it started right up.
an the ignition switch cause this or am I looking at another CPS swap?
Dennis Graber 
20-838-0558

-----Original Message-----
rom: Tom Green <trgreen at comcast.net>
o: JC <jc at j2c3.com>
c: 's-car list' <s-car-list at audifans.com>
ent: Sat, May 14, 2011 8:56 am
ubject: Re: [s-cars] Help! Car won't start...

ight on. That was my first post to him on the problem; get the ECU to 
ommunicate. 

he ignition switch is not selective in switching on items other than the 
tarter; 
therwise it powers the bus, and it appears most of the ignition switched items 
eceive power. I am not sure about any part of the issue because I am not there; 
many times essential information is omitted. My take on ignition switches is it 
an't hurt, since, if it isn't broke, it will be. I just would not start there 
ithout other 
ndications of a faulty switch. 

om 

n May 14, 2011, at 8:32 AM, JC wrote: 

 I wouldn't be so sure of that Tom - he's missing ignition switched > power at 
 ECU and can't talk to it. 
 
 Re: Bilhoney's suggestion - lack of Crank Pin is like bad CPS - > something 
 that only comes in once the ECU is alive and operating. If the ECU > isn't 
 live then it won't even have gotten to the point of checking for that. 
 
 I'd say need to be able to talk to the ECU first before worrying about 
 anything else. 
 
 Darren - you DID check the all the fuses including ones down there > in the 
 footwell, right? I think somebody posted that right at the beginning > of your 
> troubles..? 
 
> 
> I don't think so. I have not read of any issues posted that 
> point to a bad ignition switch. 
 
> 
> Tom '95 S6 
> 
> On Thursday May 12, 2011, at 10:50 PM, "Darren Smith" 
> <DS288925 at mycia.net > wrote: 
>> 
>> So, we have power at pin 18 on the ecu but not at pin 37. Ground is 
>> good at pin 24. 
>> 
>> Will a new ignition switch help/solve my problem? 
>> 
>> 
>> Signal Description 
>> 3. Fuel Pump Relay signal (output) (E87) 18. ECU Power 
> Supply Terminal 
>> 30 (+12V), Fuse #64 37. Voltage Supply (+12V) input with 
> ignition on 
>> for all 5 Fuel injectors (N30-N83), Mass Air Flow Sensor (G70), Evap 
>> 
>> 
 
 
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