O2 sensor trouble! Jayusa123 - Wednesday, 30 March, 2011, at 8:21:50 pm |
An update... and appeal for assistance Jayusa123 - Wednesday, 30 March, 2011, at 8:22:45 pm |
I would not replace the DME with short circuit codes Boxsterra - Wednesday, 30 March, 2011, at 10:13:09 pm |
Re: An update... and appeal for assistance MarcW - Wednesday, 30 March, 2011, at 11:10:29 pm |
Quote
Jayusa123
So, I'm back at it once again. Hoping to FINALLY get this sorted out. I would really prefer to know more about the true cause of the problem before I through more money at it in the form of a new (well, used) DME.
I took the car for a drive and logged information with an OBD II scan tool. I'm hoping someone can help me understand the situation a little better. Before I left for the drive I idled at operating temperature. All four O2 sensors were flat lining at 1.115v and I couldn't seem to make them budge with revving. (makes sense considering the short circuit codes--which I still have.) I took the car around the neighborhood with a max. speed of 33mph. After returning, I reviewed the data, and I was surprised to actually see some activity on one of the O2 sensors (1/1). The other 3 O2 sensors flat lined at what I assume is a maximum value (?) of 1.115v.
Below is a snapshot of the ranges for the drive. Do any look out of sorts? Unfortunately I can't export the values to charts on the computer, I can only access them on the tool, but if you would like to know what all the sensors were reading at a particular point in time, I can provide that info.
Thanks, all!
Jay
Speed: 0 - 33 MPH
Tach: 780 - 4500RPM
O2 1/1: .3v - 1.115v
O2 1/2: 1.115v (flat line)
O2 2/1: 1.115v (flat line)
O2 2/2: 1.115v (flat line)
MAF: .5 - 7.5 LB/M
Re: An update... and appeal for assistance Jayusa123 - Thursday, 31 March, 2011, at 5:27:01 pm |
Specific Porsche OBD stuff comes from mainly OBDII Engine Guide, Porsche Models... MarcW - Thursday, 31 March, 2011, at 5:35:42 pm |
Yes, AllData Boxsterra - Tuesday, 5 April, 2011, at 9:35:04 am |
Alldata = nodata grant - Wednesday, 6 April, 2011, at 2:19:10 pm |
not the elec whiz that Boxsterra is but .... JM-Stamford,CT - Wednesday, 30 March, 2011, at 10:55:21 pm |
Any '99 Boxster owners in RI??? Jayusa123 - Thursday, 31 March, 2011, at 5:25:11 pm |
Unless you are desparate and are prepared to replace not one but 2 DMEs... MarcW - Thursday, 31 March, 2011, at 5:41:00 pm |
I will defer.... JM-Stamford,CT - Monday, 4 April, 2011, at 8:48:58 am |
IIRC when this subject came up a while back -- someone facing a sick... MarcW - Monday, 4 April, 2011, at 1:11:46 pm |
Not quite true Boxsterra - Monday, 4 April, 2011, at 6:54:06 pm |
Ok. More than not quite true. It would appear to be untrue, wrong. I was relaying the info I was ... MarcW - Monday, 4 April, 2011, at 7:28:20 pm |
Re: Not quite true mikefocke, '01S Sanford, NC - Monday, 4 April, 2011, at 8:13:24 pm |
I implore, this is not a good idea Boxsterra - Monday, 4 April, 2011, at 12:33:45 pm |
Re: O2 sensor trouble! lbnj17 - Wednesday, 6 April, 2011, at 3:46:39 pm |
All my thread pitch gages and measuring tools are boxed and stored... MarcW - Wednesday, 6 April, 2011, at 5:30:28 pm |
Hah! I was looking through my Boxster factory manuals for something else and found ... MarcW - Wednesday, 6 April, 2011, at 9:35:15 pm |
Re: Hah! I was looking through my Boxster factory manuals for something else and found ... lbnj17 - Friday, 8 April, 2011, at 1:37:26 am |