Recent content by Kowalski

  1. Kowalski

    99 Tahoe/O2 sensors (upstream) defective?

    Hi Steven, thanks for welcoming me. Virginia - beautiful state. When I was a sailor on containerships we called the port of Norfolk quite often. Interesting habour with all the navy vessels.
  2. Kowalski

    99 Tahoe/O2 sensors (upstream) defective?

    Here some more screenshots
  3. Kowalski

    99 Tahoe/O2 sensors (upstream) defective?

    Dear all, I (almost) solved a rough idle condition of my '99 Tahoe 5.7 Vortec but still it idles not really smooth. As suggested by some here on this forum I purchased the Bafx-OBDII-scanner in conjunction with the Toque Pro-App. I would like to ask you, whether my O2 sensors are functioning...
  4. Kowalski

    Rough Idle - problem solved

    Dear exp500, thank you very much. Yes, I will continue posting. It feels good to talk to like-minded - hard to find in Germany in these crazy times. If only my wife would say "yes" we would live in the USA already. ;-)
  5. Kowalski

    Rough Idle - problem solved

    Dear all, thank you very much for your valuable information! With your help I was able to fix the problem: It costs 12 USD (10 €): A spray can of mass airflow sensor cleaner and 10 minutes!!! It was that simple! Engine ran smooth of cleaning the MAF sensor. Unfortunately, I did the cheap fix...
  6. Kowalski

    Rough Idle - problem solved

    I used a wrong mark on my pulley - you were all right. So yesterday, I found the correct mark and was able to install my new distributor correctly. But still, it is idling rough with strong smell of unburnt gas. I then disconnected the mass airflow sensor and it then ran smooth! Unfortunately...
  7. Kowalski

    Rough Idle - problem solved

    Dear all, thanks a lot for these valuable pieces of information. This is highly appreciated. I was able to crank the engine manually by using an extension bar for my ratchet. I am pretty sure I cranked it over to TDC of cylinder #1. My old rotor pointed then to #1 cylinder (not to #8)...
  8. Kowalski

    Rough Idle - problem solved

    Hi Steven, no problem. Nice cars (Audi TT and Yukon Denali)! Best whishes Falco
  9. Kowalski

    Rough Idle - problem solved

    Dear community, I just bought a '99 Tahoe 5.7 already with this issue - rough idling, smell of unburnt gas. The previous owner said it is the old injection system according his garage so I decided to change it to the new multi port design with no effect. Initially, I did not want to throw parts...
  10. Kowalski

    Hi from Germany

    Hi from Germany! I am Falco and just bought a '99 Tahoe 5.7 Vortec 4 door and 4WD. I find this forum very helpful for my first steps of finding out what is wrong with my new purchase. I will post another thread about what is currently wrong with my car. So here I would like to just say that I...
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