1998 Audi A4 1.8T FWD - Just Keeps Dying - AudiWorld Forums



A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

1998 Audi A4 1.8T FWD - Just Keeps Dying

Reply
 
 
 
Thread Tools Search this Thread
Old 06-30-2011, 02:16 AM   #1
AudiWorld Member
Thread Starter
 
Join Date: Sep 2000
Posts: 167
Default 1998 Audi A4 1.8T FWD - Just Keeps Dying

Hi Guys. I have a 1999 1.8T FWD MANUAL. We cannot figure out the problem with the fuel supply. The car has had an UPSOLUTE chip soldered into the ECU 6 years ago and no problems for 2 years. The car has had 3 fuel pumps, 3 fuel filters, cleaned gas tank and the problem still persists. The car just dies when idling like the engine cannot get fuel. The first 2 times, the fuel pump was busted and so we replaced. Before putting the 3rd fuel pump, we cleaned the gas tank to make sure there were no sediments causing pump failure. After using the car for about 1 month, the car died again with the same problem. I am starting to think that the chip is causing this problem. Any ideas?

Thanks.
quattroforme is offline   Reply With Quote
Old 06-30-2011, 04:07 AM   #2
Tech Guru
 
4Driver4's Avatar
 
Join Date: Oct 2002
Posts: 33,410
Default

Any codes? If no, replace the ecu.
4Driver4 is offline   Reply With Quote
Old 06-30-2011, 07:06 AM   #3
x19
AudiWorld Member
 
Join Date: May 2011
Posts: 218
Default 1998 Audi A4 1.8T FWD - Just Keeps Dying

Do you use the OEM (Bosch) pump? or maybe after market parts. Is there PCV system OK?
How much pressure do you get when you had problem ? and diagnose code number like Pxxxx or audi/vw number? etc. x19
x19 is offline   Reply With Quote
Old 06-30-2011, 11:17 AM   #4
AudiWorld Senior Member
 
Join Date: Jun 2008
Location: Yorba Linda CA
Posts: 1,532
Default

Try removing the return fuel line to the tank, under the fuel pump access cover, and extend it with a coupler/fuel hose to dump into a gas can. Now run your engine and watch for fuel flow. This should show you if there is enough pressure to bypass fuel at the regulator. I'd have the can higher than the fuel tank top, so if pressure was lost, you'd notice the fuel stopping suddenly.
turbo510 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
bad engine Dion Block Q7 Discussion 3 09-30-2015 09:30 AM
A6 1999y, 1.9tdi avant FWD air springs replacement. Markuzas A6 / S6 (C5 Platform) Discussion 5 09-28-2015 07:38 AM
:: ECS Tuning :: Schwaben VAG Professional Scan Tool By FOXWELL ECS Tuning-Audi A4 (B5 Platform) Discussion 0 09-25-2015 02:20 PM
:: ECS Tuning :: Schwaben VAG Professional Scan Tool By FOXWELL ECS Tuning-Audi A4 (B6 Platform) Discussion 0 09-25-2015 12:51 PM
:: ECS Tuning :: 8P A3 JOM|FK Coilover Sale! ECS Tuning-Audi Audi A3 / S3 / RS3 3 09-25-2015 12:30 PM


Tags
18, 18t, 1998, 2001, 28, 98, a4, audi, dieing, dies, dying, fuel, fwd, pump, test

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 06:57 AM.


 
  • Ask a Question
    Get answers from community experts
What's your question?
Send