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JFP, Thanks again for the clarification regarding the TWC (main cat infront of the muffler) bank 2 (drivers side). One other clarification please. In the diagram you provided, there are three 02 sensors shown. #26 [front of pre-cat], #27 [after pre-cat] & #25 [after main cat]. Which O2 sensors are present on my 01 S? Number 26 & 27 or 25 & 26 or 25 & 27? Thanks!
JFP, Thank you for the clarification regarding which ‘cat’ (pre cat or main cat converter) is failing when you get a P0430 code. The reason I stated the pre cat was based on the On Board Diagnostic information that I received from Form members indicating …… from ON -BOARD DIAGNOSTIC for P0420 , P0430, "Note: In the case of a catalytic converter fault in the Boxster (2.7l and 3.2l), only the pre-catalytic converter is to be replaced ". The note indicates the pre-catalytic converter to be replaced ??????? As for checking the operation of the O2 sensors (pre and post) below are the Durametric readings… At idle and 180 degrees engine temp………. BANK 1 Front O2 sensor voltage readings: 0.08 to 0.78 fluctuating (like roller coaster) resistance reading: 128 steady (flat line) Rear O2 sensor voltage readings: 0.68 to 0.76 steady (flat line) resistance reading: 320 steady (flat line) BANK 2 Front O2 sensor voltage readings: 0.09 to 0.78 fluctuating (like roller coaster) resistance reading: 64 steady (flat line) Rear O2 sensor voltage readings: 0.65 to 0.79 steady (flat line) resistance reading: 192 steady (flat line) All (4) O2 sensors heater voltage: 2.05 v I understanding that these values/readings are normal and functioning. Any suggestions? Thanks.
My 01 Boxster S (70K miles) has starting throwing P0430 CEL codes. Through help from Porsche forums I have ruled out bad O2 sensors and other upstream stream systems causes. Before I investigate changing the pre-cat, I remember reading somewhere that with an infrared thermometer you can read the temp of the cat as compared to the manifold and determine if the cat is bad by the temperature differential. Has anyone done this and is it a good indicator to make the final decision to purchase a new cat? How much difference (higher) should the pre-cat be? Thanks
Loren, thank you for the feed back information. With my Durametric, I believe triggered the secondary air pump (sounds like a vacuum cleaner) with the Durametric drive links. Does that indicate the fuse and relay are functioning? I have cleared the codes and driven the car two different 10 mike trips and the codes (so far) have not returned.
Just recently the Check Engine Light came on by 2001 Boxster S. I plugged in my Durametric reader and the following (3) codes appeared………. P0430 Porsche code 45 Cat conversion bank 2 / exceeds limit value P1411 Porsche code 208 Secondary air injection system Cyl (4-6) P0410 Porsche code 80 Secondary air injection system Cyl (1-3) Can anyone tell me what failure would cause these codes to appear? I suspect O2 sensors ???? The following are the O2 sensor resistance readings……… Bank 1 ahead of CC: 128 Bank 1 behind CC: 384 Bank 2 ahead of CC: 64 Bank 2 behind CC: 265 Can anyone tell me what the baseline reading should be? Thanks!
Tiptronic axle drive flange removal I have a slight gear lube leak coming from the axle drive flange on my Tiptronic (2001 Boxster S). Need technical advice on axle drive flange removal so I can replace the seal. It appears from the differential diagram that the splined axle drive flange is held in by a small wire ‘C-ring’. Question: does the axle flange just pop out when evenly pried out from the case, or is there a special removal process? Also, should the C-ring be replaced? Thanks for the assistance.
I'm trying to find the front and rear wheel specifications [width / weight / offset] for factory 17" wheels for a 98 Boxster. Can someone provide the information or direct me to a location that has it? Thanks!
Porschelibrarian, Found your post reply......I only have a Durametric code reader, but let me study the servive manual information you have provided. I can perform the On-board Diagnostic troubleshooting steps, and let you know the out come. Thanks!
Recently, on my 98' Boxster (mileage 90 K) the CEL came on and from my Durametric reader, code P0446, Porsche fault code 95 [shutoff valve activated / charcoal filter] was displayed. Can anyone explain what this means and what do I (from a DIY perspective) need to do? Thanks!
Loren, Got friends, but none with Boxster instruments clusters for me to borrow. I'm going to search the forums for a used one to try. Thanks for you help.............will let you know the out come. Phil Loren, I was able to purchase a used (verified working condition) instrument cluster from a fellow Boxster enthusiast, installed it and everything is working. Still do not know what caused the 'no warning failure' of cluster gagues and display. Phil