B5 Models Please discuss all 1996 - 2001 B5 A4 topics here...

Help please....Engine stutters and wont get to 120mph in 4th

Thread Tools
 
Search this Thread
 
  #11  
Old 04-03-2009, 11:20 AM
zadeluca's Avatar
1st Gear
Join Date: Apr 2008
Location: Central NY
Posts: 181
Default

Originally Posted by ghost6303
1- we dont know what year car this is. this is important because if it is a 2001 then there is a greater importance to an accurate primary O2 sensor reading then 2000 and earlier, and that exhaust leak could be screwing that up. if it is an earlier model, the leak doesnt matter as much though you should still fix it.
can you explain this in more detail? how is it different? not saying youre wrong, i just dont know everything about how these cars work yet
 
  #12  
Old 04-03-2009, 12:03 PM
ghost6303's Avatar
3rd Gear
Join Date: Oct 2007
Location: CT
Posts: 2,158
Default

2001's have a wideband O2 sensor which is more accurate so the 2001 ECU pays closer attention to this reading when dispensing fuel. the 2000 and older cars have narrow band O2 sensors which are less accurate and the car relies more on MAF readings for fuel delivery, though the primary o2 reading still does matter.
 
  #13  
Old 04-03-2009, 06:17 PM
gaberossi's Avatar
1st Gear
Thread Starter
Join Date: May 2008
Location: Parkland,Fl
Posts: 343
Default

the hesitation and stuttering i was getting was from the exhaust leak...just ordered a new test pipe and gasket set and ill be good to go.
 
  #14  
Old 04-04-2009, 12:03 PM
zadeluca's Avatar
1st Gear
Join Date: Apr 2008
Location: Central NY
Posts: 181
Default

thanks ghost. that makes sense, i didnt realize 01s have a wideband
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
judgejules95
General Tech
2
11-29-2012 12:18 PM
jcc2k4
B5 Models
9
04-05-2009 05:38 PM
eddy123
Audi A6
16
02-13-2009 12:23 AM
nick_goldie
Audi TT
14
09-09-2008 12:36 AM
huyaroo
Audi A4
10
09-12-2007 03:37 PM



Quick Reply: Help please....Engine stutters and wont get to 120mph in 4th



All times are GMT -4. The time now is 04:53 AM.