No Codes!!!

11/8/2012

First time in years I can finally say... my S4 is error code free! Fixed a recent misfire and replaces the bank 2 sensor 2 O2 sensor. My Evap Purge Valve was acting up, but I put some Seafoam solution in it and to my surprise that cleared up that code. Let's see how long this last....

**Update 11/30/2012**
Ok well that didn't last long... just got a new code for the Bank 2 sensor 1 O2 sensor. I knew I should have replaced both. Oh well I was just trying to get past emissions at the time so another fix for another time.

4 Comments

Bill Schuerman link

11/30/2012 04:18:16 am

Hey I just wanted to say thanks. I live in Arlington Wa. and have been struggling with a random misfire issues. I am not one to really take my cars to be worked on but I was running out of ideas. Reading through your blogg I have new found faith that I can fix this issue. I had the coil packs replaced a couple of years ago so I ruled that out. Now I am seeing that these could still be an issue. Also the spark plug gap. I will take your lessons learned and see what happens.

Thanks again
Bill

MyS4.org link

11/30/2012 07:00:29 am

Thanks for checking out my site! The misfires are just so frustrating so I'm right with you. So many things can cause them but man when you finally do track it down that S4 love comes right back at you.

Something I should add is check the screw on cap at the each of the spark plug where the coil connects. My plugs tend to have an issue where the caps at the end of the plug would come loose and start throwing misfires. I'm really do not want to add any glue as I'm sure that would cause issue with resistance and what not.. so every 6-8 month I go in a check them or when ever a misfires starts up.

Just two weeks ago I re-gapped my plugs and used a steel brush to clean them off. It immediately cut down on a few misfires as well throttle response is much improved. Likely should get new plugs but oh well... they work great now.

Best of look on the misfires and let me know if you are able to get them hammered out.

Bill Schuerman link

11/30/2012 04:22:18 am

Sorry bad form I have a 2001 S4 stock drive terrain but lowered and Borla Exhaust. It is an Automatic but don't hold that against me.

MyS4.org link

11/30/2012 07:02:43 am

When I'm driving through Seattle at rush hour... I wish I had an automatic. Consider yourself blessed for those situations. ;)

No Codes!!!

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