TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

Starting problems>>>

Thread Tools
 
Search this Thread
 
Old May 31, 2007 | 01:32 PM
  #1  
ShafTT  (aka CrafTT)'s Avatar
Thread Starter
Member
 
Joined: Jun 2005
Posts: 691
Likes: 0
Default Starting problems>>>

Ever since I installed the Stg3 kit. I've been having problems starting. It takes about 3-4 seconds until the engine fires up. Sometimes even longer. I talked to APR and they confirmed I received the right ECU programming. They told me to check the gapping of the plugs. which I don't really understand why that would make it hard to start. Yeah if one of them was gapped wrong I'd think it would misfire or something. Not cause the engine not to start ar all. Then he said it could be the N249 valve.(I think that was the valve he said). It was something about the secondary air system. Could that be it? I never heard of anything about it on here. When I had that fuel line come apart by the fuel pump. Could air in the system be causing this? I vag-com it and came up with nothing. Once the engine is running, it runs like a champ. No problems at all. well accept for the DP still hitting. If anybody has any info or something to troubleshoot. Please let me know.

TIA,

Rich
Reply
Old May 31, 2007 | 01:35 PM
  #2  
TTschwing's Avatar
AudiWorld Uber User
Tech Guru
 
Joined: Dec 2000
Posts: 53,281
Likes: 2
Default Rich...Got your email...>

I'm guessing fuel or spark. Probably fuel. Recent fuel filter change? Can you hear the pump? All the other stuff needs to be optimized also ie: Plugs and Gap. I don't think air would remain in the fuel system though as it's a high pressure, recirculating system...
Reply
Old May 31, 2007 | 01:40 PM
  #3  
ShafTT  (aka CrafTT)'s Avatar
Thread Starter
Member
 
Joined: Jun 2005
Posts: 691
Likes: 0
Default

Pump..I can hear-----Filter I have not changed. I'll try that.
Reply
Old May 31, 2007 | 02:28 PM
  #4  
ShafTT  (aka CrafTT)'s Avatar
Thread Starter
Member
 
Joined: Jun 2005
Posts: 691
Likes: 0
Default

Ok..I changed out the filter. Starts up good so far. I'll try it again in an hour or 2.
Reply
Old May 31, 2007 | 02:55 PM
  #5  
andrew.tt's Avatar
AudiWorld Super User
 
Joined: Feb 2003
Posts: 3,416
Likes: 1
From: Boston, MA
Default my stage III has always had hard starts. sometimes taking 2 trys >>

new plugs, fuel filter, etc. same result. i live with it.
Reply
Old May 31, 2007 | 03:33 PM
  #6  
ShafTT  (aka CrafTT)'s Avatar
Thread Starter
Member
 
Joined: Jun 2005
Posts: 691
Likes: 0
Default Back to the drawing board. Problem is back.

I just turned the key and it happend again. Do you suppose pressure could be bleeding off one of those line on the fuel pump. If it was bleeding off would this problem be it. would you dare to take the cover off and the top of the housing and turn the key to see if there are any leaks. Or would that be to dangerous?
I don't think I cracked one of those crappy line when I switched pumps.
Reply
Old May 31, 2007 | 03:34 PM
  #7  
ShafTT  (aka CrafTT)'s Avatar
Thread Starter
Member
 
Joined: Jun 2005
Posts: 691
Likes: 0
Default

Really....I wonder if everyone has this problem with Stg 3.
Reply
Old May 31, 2007 | 03:35 PM
  #8  
Scenic Driver's Avatar
AudiWorld Super User
 
Joined: Jun 2006
Posts: 5,540
Likes: 0
Default

Leaking fuel injectors? Do you have a gauge to do a leak down test of the system?
Reply
AudiWorld Stories

Bringing Audi to Life for Audi Fans

story-0

The Highs & Lows of Every Audi C-Class Generation

 Joe Kucinski
story-1

Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

 Brett Foote
story-2

10 Audi Features & Options We Miss the Most!

 Joe Kucinski
story-3

Audi Recreates Crazy-Looking Speed Record Breaker From 1935

 Verdad Gallardo
story-4

Coachbuilder Recreates the 1995 Audi TTS Concept

 Verdad Gallardo
story-5

Every Audi V10 Car Ranked!

 Joe Kucinski
story-6

9 Audi Designs That Aged Like Fine Wine

 Verdad Gallardo
story-7

2026 Audi Q5 Buyer's Guide (Every Model Explained)

 Brett Foote
story-8

Ranking Every Current Audi 'S' Model From Worst to First!

 Joe Kucinski
story-9

10 Best Audis That are FINALLY LEGAL to Import to the U.S.!

 Joe Kucinski
Old May 31, 2007 | 03:39 PM
  #9  
ShafTT  (aka CrafTT)'s Avatar
Thread Starter
Member
 
Joined: Jun 2005
Posts: 691
Likes: 0
Default

No and No.
Reply
Old May 31, 2007 | 03:47 PM
  #10  
Scenic Driver's Avatar
AudiWorld Super User
 
Joined: Jun 2006
Posts: 5,540
Likes: 0
Default I have a gauge if you needed to borrow it. One side note >>>

There is an adaptation channel in the ecu for statup and warmup fuel. I had an issue with cold starting at one point and a minor tweak fixed it. I'm throwing this out there in case everything checks out and it still sounds like a fuel problem.
Reply



All times are GMT -8. The time now is 04:51 AM.

story-0
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-1
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-2
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-3
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-4
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-5
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE
story-6
9 Audi Designs That Aged Like Fine Wine

Slideshow: A look back at the Audis that didn't just survive changing tastes, they quietly outgrew them.

By Verdad Gallardo | 2026-04-28 19:38:27


VIEW MORE
story-7
2026 Audi Q5 Buyer's Guide (Every Model Explained)

One year off a full redesign, the best-selling Q5 is getting a few more updates.

By Brett Foote | 2026-04-17 09:56:19


VIEW MORE
story-8
Ranking Every Current Audi 'S' Model From Worst to First!

Slideshow: Ranking every current Audi 'S' model on sale today from worst to best.

By Joe Kucinski | 2026-04-16 10:28:28


VIEW MORE
story-9
10 Best Audis That are FINALLY LEGAL to Import to the U.S.!

Slideshow: 10 best Audis that are finally legal to import to the U.S.

By Joe Kucinski | 2026-03-24 17:20:08


VIEW MORE