[s-cars] Help! Car won't start...Follow-up
Wylie Bean
theringmeister at triad.rr.com
Tue May 17 06:41:37 PDT 2011
Dennis,
My car had a BBA cps installed just before I bought it, and I have already had to replace it as well (at the time it had been in the car roughly 3 years). I don't think they're quite as robust as the OE one is/was. Very frustrating!
Wylie Bean
90 cq
91 90q20v
92 UrS4
08 Q7
-----Original Message-----
From: dgraber460 at aol.com
Sender: s-car-list-bounces at audifans.com
Date: Tue, 17 May 2011 09:37:36
To: <s-car-list at audifans.com>
Subject: Re: [s-cars] Help! Car won't start...Follow-up
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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