1998 Audi A4, 1.8 Turbo

Asked by Jul 06, 2011 at 11:07 AM about the 1998 Audi A4 1.8T

Question type: Maintenance & Repair

Hello, anyone who can assist would be greatly appreciated.  I have desperately been trying to get this car running properly.  I have a new turbo, throttle body, tuned up, oil changed, new fuel filter, fuel pump, and still when I start it and it runs, it will start loosing power as if "trash" is in the gas line the way it acts, just pratically shuts down but if i come off the gas pedal, it eventually goes again, it acts as if "air" get's in a line or "trash" come up to the injectors and it looses power.  PLEASE ANYONE!  THANKS

3 Answers

1,025

Are you getting any engine lights? is it flashing while you're bogging down? It sounds like you did everything right but overlooked some things. Check out the coil packs. If one is bad you are going to misfire. Like the car will run ok but once you get on the turbo at all it will just feel like crap. They're like $20ea and they sell them at most parts stores. I would say get your codes read and maybe pick one up then change them one at a time to see if you find the bad one. Worst case, it'll cost you $20 and you still won't know the problem.

^ if your going to change one change them all, check if there is water on your spark plugs, maybe you have a blown head gasket, lol or maybe you just need spark plugs and coil packs. or it could be a vacuum leak, it is after all a turbo car and Air pressure is everything. Check all vacuum hoses

if there was trash in the fuel it would also bog when you give it gas. Sounds like Vacuum to me now that I think About it, CHECK ALL VACUUM HOSES AND LET ME KNOW HOW THAT GOES. Hook a obd2 scanner and get the codes, and figure it out. it isn't hard man you can do it

Your Answer

Add photo

Related Questions

  • Can a 1.8 turbo be replaced with a 2.0 1 answer

    The waste gate housing has cracked,on my 2004 Audi A4 1.8. I have been told to swap it out with a 2.0 to increase the cooling capacity and over all Proformance and reliability. What are your thought...

    Audi A4

    -

    Maintenance & Repair

  • audi a4 turbo leaking is turbo bad can,t find any other leaks 1 answer

    AUDI A4 QUARRTO OIL LEAKING . PULLED TURBO COUNDN,T FIND ANY OTHER LEAKS

    2001 Audi A4

    -

    Maintenance & Repair

  • 2001 Audi A4 1.8T started ticking 20 answers

    Hi everyone, I need your help I recently got a 2001 audi a4 after my 03 jeep cherokee died on me (RIP). The audi has been driving so well, until this morning on my way to work. I started the car, a...

    2001 Audi A4 1.8T

    -

    Maintenance & Repair

  • Audi A4 started shaking 13 answers

    I have a 2002 Audi A4 1.8 manual transmission with 135,000 miles. Everything has been working great, no service lights, but a day ago it started shaking, slightly shaking, and when I opened the hood I...

    2002 Audi A4 4 Dr 1.8T quattro Turbo AWD Sedan

    -

    Maintenance & Repair

  • IS 2001 AYDU A4 1.8 TURBO SADAN A SPORTS CAR 4 answers

    IS A AUDI A41.8 TURBO SEDAN A SPORTS CAR

    2001 Audi A4

    -

    General

A4

Looking for a Used A4 in your area?

CarGurus has 12,080 nationwide A4 listings starting at $950.

ZIP:

Search Audi A4 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Audi A4 Experts

#1 Deathjam4
Deathjam4
Reputation 2,900
#2 FordNut
FordNut
Reputation 770
#3 lukeyramone
lukeyramone
Reputation 480
View All

Related Models For Sale

Used BMW 3 Series
1,512 Great Deals out of 38,739 listings starting at $1,495
Used Audi A6
163 Great Deals out of 7,592 listings starting at $950
Used Audi S4
61 Great Deals out of 921 listings starting at $3,450
Used Mercedes-Benz C-Class
677 Great Deals out of 31,739 listings starting at $2,500
Used Audi A3
73 Great Deals out of 6,724 listings starting at $3,500
Used BMW 5 Series
624 Great Deals out of 15,562 listings starting at $2,495
Used Honda Accord
996 Great Deals out of 74,834 listings starting at $899
Used Ford Mustang
550 Great Deals out of 42,532 listings starting at $1,699
Used Audi A8
42 Great Deals out of 1,809 listings starting at $4,995
Used Chevrolet Camaro
438 Great Deals out of 40,495 listings starting at $3,500
Used Mercedes-Benz E-Class
385 Great Deals out of 22,216 listings starting at $1,450

Used Cars For Sale

2017 Audi A4 For Sale
5,378 listings starting at $32,631
2016 Audi A4 For Sale
12 Great Deals out of 263 listings starting at $25,489
2015 Audi A4 For Sale
29 Great Deals out of 387 listings starting at $17,995
2014 Audi A4 For Sale
70 Great Deals out of 1,077 listings starting at $15,990
2013 Audi A4 For Sale
52 Great Deals out of 779 listings starting at $13,900