So I went to ACHTuning to pick up an R1, and I told them I wanted an ECU upgrade too, so they ran a diagnostic on my car, which put me in a really really bad mood. See below:

The only thing that I've done so far is throw a new K&N air filter in there (and a stage 3+ FOB).

The DV died on me already, it's gone after I drove it 300 miles (I just got this car two weeks ago)

So what do I have to do to fix these seven deadly sins? I'm thinking the spark plugs and coilpacks are total ****; why the **** else would I have a misfire. Man, I'm pissed.

On the bright side, they said they'd install the new ECU for free. And I got the R1 for $10 cheaper (yes it's brand new, factory-sealed).

So yeah, any suggestions on how to fix them codes? I had them clear the codes and we'll re-scan once I do what I can to fix them.


EDIT: It's a 2000 (therefore a B5) 1.8T.

 

2000 is a B5. Clear the codes and see if they return. Bad sparkplugs,
faultyignitioncoils and vacuum leaks are possible.

 

I had them clear the codes; should I rescan after I buy new spark plugs and coilpacks, or before? I'm having them chip the car; so I might as well get new spark plugs and coilpacks anyways, right?

 

There all intermittent faults, doesn't mean s***. You probably dis-connected the battery or something or a relay got stuck once. Just erase them and see if any of them come back within 5 days. If they don't it was a fluke.

 

Oh god I love you.

But, what if they do come back? I bought this car two weeks ago, and it had 66K miles on it, so I'm thinking the previous owner could've had some stale codes in it.

 

If you had real misfire problems, you woulndt need codes to tell you that. Probably just stored over time...

 

Fat chance they will. You would have noticed a miss-fire, it takes the computer literally over 50 starts without a problem before the ECM will deem the fault as intermittent. So that means you have driven the car over 50 times and haven't had any problems.

 

I can definitely feel my DV giving out. I'm losing *ALOT* of boost from it. ****, it's so loud, I can probably beat cincy in a competition of who's BOV is louder!

 

Lol well id say no worries, if it was misfiring you would know, your car would run like ***. As does mine right now[:@]

 

Phew, yeah. My car runs and handles tighter than a 12 year old






back injury.

So I'll take it back to them tomorrow and have them re-scan it. If they cleared the codes out today, they shouldn't show up as intermittent tomorrow no matter what, right? I'm sure as ******* hell not going to start the car 50+ times between now and tomorrow. I'll start it a grand total of 4 times.