Go Back  AudiWorld Forums > Technical Discussion > Performance and Tuning
Reload this Page >

2003 a4 1.8 t auto troubleshooting

Performance and Tuning Discussion forum for various performance tuning techniques and questions
Sponsored by:
Sponsored by:

2003 a4 1.8 t auto troubleshooting

 
Old 06-08-2016, 04:12 PM
  #1  
AudiWorld Newcomer
Thread Starter
 
Join Date: Jun 2016
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default 2003 a4 1.8 t auto troubleshooting

Hello everyone, I would like to start out with a thank you! This is my first Audi/ turbo car so this forum has been a huge help diagnosing and repairing my car.

Anyway here goes, my car had no boost when purchased so I replaced turbo (was blown) still no boost, replaced diverter valve with blowoff valve, no boost, replaced n75 valve, no boost. Performed boost leak test three times, no leakes, flushed intercooler, eliminated catalytic converter, replaced plugs, coils, air filter, maf sensor, fuel injectors. I finally installed a boost gauge. with aftermarket blowoff valve I was reading vacuum at about -16 at idle but no boost, replaced blowoff valve with original (old) diverter valve and read no vacuum, no boost. Disconnected n75 from wastegate and read no vacuum and boost of 5 psi. Any help would be greatly appreciated, I'm out of ideas!! Just for a thorough history, I have also checked compression which is good, replaced timing belt, water pump, valve cover gasket,coolant temp sensor, thermostat, cam chain tensioner and installed aftermarket coil hold down brackets. car is only showing codes due to cat delete. Thank you in advance! Sorry for the long writeup
Cabinetconsultants.dan@gmail.c is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hahnmgh63
TT (Mk1) Discussion
4
03-20-2009 10:51 AM
lazy n00b
S4 / RS4 (B5 Platform) Discussion
3
04-23-2007 11:10 AM
Psychosel238
A4 (B5 Platform) Discussion
2
12-02-2005 10:27 AM
Natty Boh
TT (Mk1) Discussion
9
11-14-2005 01:11 PM
jae shin
TT (Mk1) Discussion
2
04-05-2004 01:46 PM


Thread Tools
Search this Thread
Quick Reply: 2003 a4 1.8 t auto troubleshooting


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: