My 2008 Audi A3 starts but wont stay on

Asked by Jul 12, 2016 at 01:36 PM about the 2008 Audi A3 2.0T

Question type: Maintenance & Repair

My 2008 Audi A3 2.0t  starts but wont stay on. At
1st when the car would start it would produce a big
cloud of white smoke and smelt like gas. After
driving it for a few miles and parked it the car
wouldn't stay on after starting. I replaced the fuel
pressure regulator and still nothing. Spark plus
were new but now all black from what I'm guessing
is that the fuel isn't getting ignited or its just to
much fuel coming out. Any ideas?

7 Answers

10,455

pull the plugs and check for spark it might jsut be a coil issue.

Replaced all plugs and coil packs and drive it for about 100 miles and checked the plugs again and they are covered in black carbon.

These are the codes it's throwing.. P2293 p2440 p2570 p2569 p0491

10,455

P2293 is fuel pressure, p2440 is Secondary Air Injection System Switching Valve Stuck Open, p2570 - p2569 is Direct Ozone Reduction Catalyst Temperature Sensor Circuit High, p0491 is Secondary Air System Bank 1 & 2. In short first off the car simply put is not firing properly and the fact you were driving it during this time has likely killed your catalytic converters. Some of the breather hoses are likely clogged as well find the stuck air valve and replace it it will likely be the cause of the fuel issue. I would replace the fuel filter as well as this can some times cause this issue as well if it is full of crap. The idea is to solve one issue at a time working from the first trouble code to the next the reason for this being usually the first code is where the main issue is.

Issues were fixed put now the car is throwing codes P2570 and P0299. Their are saying it has to do with a sensor on the radiator and the turbo underfoot I think might be the cat....any thoughts? This car is a pain

10,455

This is most likely a cat issue. Either the cat has gotten pluged or its gone bad. This is often caused by backfiring issues poor idle exctra. I would first try checking all the sensors clean them check the wiring and listen to your turbo. If you hear any sign that it is struggling then you most likely need to replace it. These cars do get to be a bit of a money pit after they get old but then again what car isn't. I did most of my repairs myself and it saves your wallet alot of money doing so. if your turbo needs replacing tho i would recomend a garage doing it as it is a pain in the ass and the turbo regardless is any where from 600 - 900$ and only buy a new one never a used one.

Ya next thing I'm going to replace is the cat. And both o2 sensors. Turbo sounds fine. No issues with it.

Your Answer

A3

Looking for a Used A3 in your area?

CarGurus has 5,027 nationwide A3 listings starting at $3,250.

ZIP:

Audi A3 Experts

  • #1
    300SDLGUY
    Reputation
    150
  • #2
    Tom Demyan
    Reputation
    60
  • #3
    F_O_R
    Reputation
    50
View All

Related Models For Sale

Used Audi A4
261 Great Deals out of 11,271 listings starting at $1,999
Used BMW 3 Series
1,150 Great Deals out of 32,993 listings starting at $1,000
Used Audi A5
88 Great Deals out of 4,783 listings starting at $9,795
Used Audi A6
139 Great Deals out of 6,464 listings starting at $1,995
Used Audi S3
12 Great Deals out of 612 listings starting at $24,976
Used Mercedes-Benz C-Class
618 Great Deals out of 26,278 listings starting at $1,900
Used Audi S4
54 Great Deals out of 1,629 listings starting at $3,995
Used Volkswagen GTI
132 Great Deals out of 8,601 listings starting at $2,400
Used Audi Q5
168 Great Deals out of 7,854 listings starting at $7,987
Used Ford Mustang
675 Great Deals out of 37,799 listings starting at $895
Used Volkswagen Jetta
569 Great Deals out of 35,670 listings starting at $1,000
Used Honda Accord
1,070 Great Deals out of 61,078 listings starting at $1,099
Used Honda Civic
771 Great Deals out of 72,566 listings starting at $1,400

Used Cars For Sale

2017 Audi A3 For Sale
1,025 listings starting at $24,998
2016 Audi A3 For Sale
13 Great Deals out of 417 listings starting at $16,800
2015 Audi A3 For Sale
56 Great Deals out of 1,391 listings starting at $14,495
2013 Audi A3 For Sale
3 Great Deals out of 53 listings starting at $11,998
2012 Audi A3 For Sale
6 Great Deals out of 71 listings starting at $10,899

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.