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About jweimer

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  • From
    Northern Illinois
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2004 Porsche Cayenne Turbo

Recent Profile Visitors

400 profile views
  1. Hello folks, Well, it's been a while but I do have a positive update after 1 month of what seems to be the root cause/corrective action. The problem was the O2 sensor connector at the firewall (where 02 sensor plugs in). Apparently the connector latch broke thus the connector was not secure causing an intermittent fault. The remedy was to zip tie the connector (interim solution) so that it stays secure. Additional background: Since my last posting on 2/26/17, I continued to drive the Cayenne, resetting the CEL with my BlueDriver OBD!! scanner. My emissio
  2. here's one other update: Note: Fuel system status: "system A" will eventually reach closed loop. "System B" never reaches closed loop Note: this is after taking out and cleaning passenger side MAF.
  3. Hi Folks, I bought a Bluedriver scan tool so that I can actually do data logging simply. I also have a durametric tool but need to install it. Below listed is a scan that I took after the vehicle was up to temperature. The bank 1 sensor 1 lamba ratio is a constant value of 1.99 and shows not sign of fluctuation when graphed whereas bank 2 sensor 1 does fluctuate when graphed and also numerically when the data was logged. I know the values are simply a point in time but sensor 1 bank 1 does not appear functional. I also
  4. Hi folks, Just a brief update in case this is of value. As a precursor, I did watch of few of the videos and they are excellent. Simple explanations for fairly complex subjects. Thanks folks for your verification of part number and other hints, which I need to try. On Saturday (60F here and sunny), I drove the vehicle for approx., 4 miles only to have the P0130 code appear again. I cleared the fault, stopped for 15 minutes, drove another approx. 4 miles and the same thing happened. This process repeated two other times with the vehicle resting anywhere
  5. Hello Lewis and Boxzilla, First, thank you very much for your prompt responses! I am truly awed by the support in this forum and hope I can give back as much as people have given to me. 1) I will watch the video this evening 2) It is a Bosch with part number 955-606-126-02-M14.
  6. Hi Folks, Here's an update. The frequency of the P0130 code has steadily increased to almost once every 15 miles. I keep resetting it with my diagnostic tester but it keeps coming back, as expected. I took it to a local shop that specializes in Porsches and is recommended in this and other sites as a trusted PPI shop and for repairs. They did a more comprehensive data logging and graphing and found that this sensor compared to the same pre-cat sensor on the driver side reacted a bit differently in that the suspect sensor (one causing the P0130 code) reacted a bit slower under ce
  7. Loren, Thanks for the suggestions and I will look into it being an exhaust system leak.
  8. Dear Forum, I have a 2004 Cayenne Turbo with 87k miles on it. I purchased it used in February and encountered the P0130 code in late April. I replaced the bank 1, sensor 1 02 sensor (passenger side, in front of catalytic converter) in mid-May, cleared the code and all was well until now. The code has re-appeared after approximately 150 miles since replacement. Hs anyone experienced a similar issue of a P0130 code soon after the O2 sensor replacement? I welcome all suggestions. FYI - in an attempt to give back to this good community, I did post my replacement procedure in this
  9. Hi Everyone, Well, I finally managed to purchase my first Porsche - a 2004 Turbo Cayenne with 86k miles and most of the normal out of warranty work already done (coolant tubes, cardan shaft, etc) and am thrilled to be a member of the Porsche community! Prior to purchasing it, I read through many articles on Porsche ownership to get an idea of normal problems and remedies. Renntech has been a treasure of information and I would now like to give back a little bit to the community. The dreaded CEL arose after 2 months of ownership and I took the CTT into O'Reillys (thanks O'Reillys)
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