AudiWorld Forums

Audi Original "S" Cars Discussion forum for the Audi Audi Ur S4, Ur S6, S2 & RS2

No start condition. '94 S4 with AAN engine and 3B top from S2.

Thread Tools
 
Search this Thread
 
Old 01-27-2006, 09:35 AM
  #1  
AudiWorld Member
Thread Starter
 
bar1's Avatar
 
Join Date: Jun 2001
Posts: 421
Likes: 0
Received 0 Likes on 0 Posts
Default No start condition. '94 S4 with AAN engine and 3B top from S2.
Has ignition, fuel and air.
Signal ok from cam-position sensor.
Tried with and without MAF. Swapped ECU with a known good one.
No fault codes stored.
Engine will not start..
Any ideas folks??
bar1 is offline  
Reply Like
Old 01-27-2006, 09:47 AM
  #2  
AudiWorld Senior Member
 
The Librarian's Avatar
 
Join Date: Aug 2003
Posts: 1,763
Likes: 0
Received 0 Likes on 0 Posts
Default
Could be the crank sensors.
The Librarian is offline  
Reply Like
Old 01-27-2006, 09:50 AM
  #3  
AudiWorld Super User
 
chefbob's Avatar
 
Join Date: Nov 2004
Posts: 5,327
Likes: 0
Received 0 Likes on 0 Posts
Default
I switched the fuel lines going to the rail, crossed the supply and return lines.
chefbob is offline  
Reply Like
Old 01-27-2006, 10:01 AM
  #4  
AudiWorld Member
Thread Starter
 
bar1's Avatar
 
Join Date: Jun 2001
Posts: 421
Likes: 0
Received 0 Likes on 0 Posts
Default
I could see fuel coming in the cylinder when I removed spark plugs and crancked the starter.
bar1 is offline  
Reply Like
Old 01-27-2006, 10:22 AM
  #5  
AudiWorld Super User
 
chefbob's Avatar
 
Join Date: Nov 2004
Posts: 5,327
Likes: 0
Received 0 Likes on 0 Posts
Default
so I take it you checked for spark?
chefbob is offline  
Reply Like
Old 01-27-2006, 10:33 AM
  #6  
AudiWorld Member
Thread Starter
 
bar1's Avatar
 
Join Date: Jun 2001
Posts: 421
Likes: 0
Received 0 Likes on 0 Posts
Default
Yes I have spark. That means the cam-position (hall effect) sensor is ok?!?
bar1 is offline  
Reply Like
Old 01-27-2006, 10:58 AM
  #7  
AudiWorld Member
Thread Starter
 
bar1's Avatar
 
Join Date: Jun 2001
Posts: 421
Likes: 0
Received 0 Likes on 0 Posts
Default
Where is it located? Early AAN engine with the "distributor house" with the hall-effect-sensor.
bar1 is offline  
Reply Like

Trending Topics

Old 01-27-2006, 11:33 AM
  #8  
AudiWorld Senior Member
 
The Librarian's Avatar
 
Join Date: Aug 2003
Posts: 1,763
Likes: 0
Received 0 Likes on 0 Posts
Default See above or link through URL inside.
<ul><li><a href="https://forums.audiworld.com/s4s6/msgs/104051.phtml">https://forums.audiworld.com/s4s6/msgs/104051.phtml</a</li></ul>
The Librarian is offline  
Reply Like
Old 01-27-2006, 11:41 AM
  #9  
AudiWorld Member
Thread Starter
 
bar1's Avatar
 
Join Date: Jun 2001
Posts: 421
Likes: 0
Received 0 Likes on 0 Posts
Default
Nice!! Thanks.
bar1 is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
No start condition/ Have spark, have fuel, NO injector pulse
Speec
A4 (B5 Platform) Discussion
3
10-06-2015 07:30 PM
no start issue
matus08
2.7T V6 Discussion
5
03-22-2008 07:21 AM
Starting issues (different from the last time...)
SparTTan
TT (Mk1) Discussion
4
01-07-2008 11:05 AM
once warmed up, won't start again
mow
Audi 90 / 80 / Coupe quattro / Cabriolet
4
09-18-2002 04:42 PM
92 100CS -Engine stalling on highway-HELP
tytye
Audi 100 / A6 (C4 Platform)
1
07-22-2002 05:45 AM
Tags
Back to Subforum
Audi Original "S" Cars
View Next Unread
new fuel pump installed, hopefully that worry is now gone, where is the check valve located?




Advanced Search
Quick Reply: No start condition. '94 S4 with AAN engine and 3B top from S2.


Reply Closed Thread Share

All times are GMT -8. The time now is 02:40 AM.