94 Audi 100 s 2.8 auto no start
09-07-2008, 12:48 PM
#13
New Member
Thread Starter
Join Date: Jul 2008
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Re: Do you have a Bentley repair manual to guide you through testing the various components?
No I don't. I'm thinking I need to test the POS and the cam sensor. I've already removed the POS.h
09-07-2008, 10:39 PM
#14
Time to go through the basics. Fuel, air and fire....which are you missing?
If you've got all 3, then I'd look at the cam position sensor being full of water.
Had a Passat come into the dealership once that would die on decelerating right hand turns. After umpteen hours of diagnostic time on it, and calling the VOA Tech Line, I finally removed the MAF and shook it. *slosh-slosh* Cut the factory silicone sealant out from around the lid covering the circuit board and found about a tablespoon of soapy water inside. Guess what our detail guys had done to the car just prior to it being sold as a used car?
Had a Passat come into the dealership once that would die on decelerating right hand turns. After umpteen hours of diagnostic time on it, and calling the VOA Tech Line, I finally removed the MAF and shook it. *slosh-slosh* Cut the factory silicone sealant out from around the lid covering the circuit board and found about a tablespoon of soapy water inside. Guess what our detail guys had done to the car just prior to it being sold as a used car?
09-09-2008, 06:09 AM
#15
New Member
Thread Starter
Join Date: Jul 2008
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Re: Time to go through the basics. Fuel, air and fire....which are you missing?
Got AIr, Got Fuel, No spark! I'm told that the cam sensor controls the POS during cranking. So if the cam sensor is "fouled" then no spark. I initally had a code for the cam sensor to begin with. I'm thinking that you are correct,atleast in that the cam sensor is the problem. I would not be surprised to find it full of water. I'm going to replace the cam sensor and the POS and see what happens. I will update when I do. Thanks for your help!
09-09-2008, 07:07 AM
#18
AudiWorld Super User
Join Date: Aug 2005
Location: beside the Great Salty Wetspot
Posts: 4,898
Likes: 0
Received 0 Likes
on
0 Posts
yep, clean the metalic particles etc off the magnet in the CPS. However, a bad CPS almost always
throws a DTC in the ECM. A POS won't throw a code, IIRC.
09-27-2008, 12:54 PM
#19
New Member
Thread Starter
Join Date: Jul 2008
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Re: 94 Audi 100 s 2.8 auto no start
Thanks all for your help! It is now running! After all of this it was the cam sensor I replaced it and now she starts. I did not find any water in it but I did find a lot of oil residue. I can't dismiss the power washing but I'll remember this always. I am glad it is now running! Again thanks everyone for your help!
Thread
Thread Starter
Forum
Replies
Last Post
junglefowl
A4 (B5 Platform) Discussion
2
08-07-2013 10:22 AM
