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

9,905

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

9,905

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

9,905

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

Add photo

Related Questions

A3

Looking for a Used A3 in your area?

CarGurus has 5,141 nationwide A3 listings starting at $3,995.

ZIP:

Search Audi A3 Questions

Audi A3 Experts

#1 300SDLGUY
300SDLGUY
Reputation 150
#2 Tom Demyan
Tom Demyan
Reputation 60
#3 F_O_R
F_O_R
Reputation 40
View All

Related Models For Sale

Used Audi A4
300 Great Deals out of 10,524 listings starting at $1,000
Used BMW 3 Series
1,001 Great Deals out of 31,467 listings starting at $1,000
Used Audi A5
99 Great Deals out of 4,670 listings starting at $7,490
Used Audi A6
139 Great Deals out of 6,105 listings starting at $2,488
Used Audi S3
5 Great Deals out of 587 listings starting at $26,779
Used Mercedes-Benz C-Class
643 Great Deals out of 24,832 listings starting at $1,995
Used Ford Mustang
689 Great Deals out of 44,321 listings starting at $1,500
Used Audi S4
58 Great Deals out of 1,732 listings starting at $4,650
Used Honda Accord
1,054 Great Deals out of 66,814 listings starting at $1,000
Used Volkswagen GTI
106 Great Deals out of 8,420 listings starting at $1,995
Used Audi Q5
161 Great Deals out of 6,764 listings starting at $8,970
Used Volkswagen Jetta
541 Great Deals out of 43,961 listings starting at $800
Used Honda Civic
844 Great Deals out of 83,686 listings starting at $1,200

Used Cars For Sale

2017 Audi A3 For Sale
2,650 listings starting at $28,225
2016 Audi A3 For Sale
11 Great Deals out of 549 listings starting at $16,900
2015 Audi A3 For Sale
41 Great Deals out of 1,248 listings starting at $15,399
2013 Audi A3 For Sale
38 listings starting at $10,450
2012 Audi A3 For Sale
5 Great Deals out of 62 listings starting at $9,000

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.