GaryFB

Hi Loren; The Porsche-BOSE CD Rom software Update fixed the PCM2 code. Thanks for your help.

Hi Loren; I have received these two CD Rom Updates relating to the TSB. I will let you know what happens.

TSB 13/04 W522 Dated 04-15-2005 applies to this car. The PCM2 Software Version is 3.0 and the BOSE amp Software version is 000 119 20. The TSB indicates there is an update for the BOSE amp. I do not know if that will fix the Code 800A, but I suspect I should try. Does anyone have experience with this TSB ?

Hi Jorge; do you think wheel spin improves forward acceleration? Yes, engaging the clutch when the engine is reving at 4500 rpm increased clutch wear substantially.

Hi Loren; yes, I Read the Fault first, then go to Erase Fault, but it will not allow me to erase. I removed the instrument panel, inspected the microphone, the wires, and performed the resistance tests as per the Porsche Manual. I even replaced the microphone. I performed the Automated Test of the BOSE microphone and speakers, and both pass. But the Fault Code remains. The Fault Data says the fault is Present. The system self tests itself and passes, but it also sees a fault. I call that a contradiction. I wonder if there is a software problem in the BOSE amp module? I guess I have to replace it to find out. I just hate guessing. I hate when the Trouble Chart ends with replace with new module. I will try recycling the key and erasing the code, I think I have done this, but I will do it as a proceedure. Thanks again.

Hi Loren; thank you for the quick response. No, there are no symptoms. Why is the fault recorded and why will the fault not erase? I have attached the pages form the manual and the data from the PST2. Thank you. Codes.pdf

I have never done this on a C4. I quoted you what the service manual says (see below). The service manual could be wrong - the easiest way to tell for sure is to take the fill plug out and stick your finger inside to touch the oil. If it comes out with a red colored very light oil then it is ATF if it comes out with a thicker yellow/brown oil then it is gear oil. Please let us know if the service manual is wrong! Hi Loren; I think the Workshop Manual proceedure may also be incorrect on the capacity of 9 liters for the front drive differential. Maybe 9 liters of ATF for the entire tiptronic.

2003, Boxster S, 025,268 miles. Using the PST2 I have a PCM2 Code 800A - Microphone not connected. I have followed the diagnostic proceedure in the Porsche Manual (checking the wires), I have replaced the microphone (996-646-307-04-A03) with a new part purchased from the dealer. The code will not erase even with the new microphone. When I perform automated self test for the microphone and speakers, using the PST2, both pass the test. According to the Porsche Manual, I need to replace the BOSE amplifier control module. Has anyone ever experienced this fault code? Will a new BOSE amplifier control module fix this problem? The following is the Code Data: Fault type: Limit exceeded - present Lock Status of MOST ring: lock Supply voltage: 13.4 v Frequency counter: 50 MOST unlock counter: 93 MOST transmission error: 12 Fault Memory could not be erased Can anyone explain the above Code Data? Thank you.

You should document the problem with the Service Writer and mail a letter to Porsche, if you feel the noise is related to their work. You should also give them the opportunity to correct the problem. What does the "Repair Kit" consist ? How did the dealer document the repair? Very important, what year and model.

Hi Loren; thank you for the reply. I will post what I find. I was just hoping someone had come across this before.

Hi Loren; Thank you for the reply. Yes, I performed the adaption as you described, that is exactly how it is written in the manual. I also searched this site & checked all the TSBs, but have not found anything. Thanks. I also looked at the 7 different throttle & pedal values. I should have hit Save, or at least written them down. But the code appears to be related to the time required to close the throttle.

Hi Everyone; I must be over looking something, or there is a secret to the throttle adaptation. For a 2002 Boxster, the car sat unused in the garage. I replaced the battery, when the car started, I got a code P1502, and the engine ran real bad and would barely accelerate. Using the PST2, I erased the code while the engine was running, and the engine ran smooth and was responsive. Turn the key off and the engine runs terrible and will not accelerate. The manual says the engine throttle performs a test on the safety return spring and this throttle is failing the test. I purchased a new throttle form the dealer, performed the adaptation, and have the exact same problem. What am I doing wrong? Thanks in advance.

Modern tires are designed not to blow out even it they have a nail in them. The tire integrity should be better whith a well repaired puncture than with the nail in it. If we worry about a repaired tire we should be constantly worry about stepping on a nail and driving with it and should stop every few miles to check the tires. :rolleyes: Of course raising protocols are a different issue ... I can't imagine anybody paricipating in NASCAR with a patched tire. :wacko: <{POST_SNAPBACK}> Hi Rolando; There are at least 3 types of tire puncture repairs. 1) is the plug only, installed from the tread side. 2) is the patch repair, installed from the inside of a dismounted tire. 3) is the one piece patch and plug, installed from the insdie of a dismounted tire. I will research and report back as to with Federal or Industry agency has ruled that only #3 is an acceptable repair. From a liability issue, #1 and #2 should not be performed by a repair shop, moisture can leak in and corrode the belts resulting in a tire failure. If the vehicle owner installs #1 or even the liquid stuff through the tire valve, that is ok. But when a repair shop performs this operation, and an accident results, the repair shop is liable because the industry says that #1 and #2 are not acceptable repairs. If it goes to court, the repair shop loses. If you like, I can obtain more information. I have done many #1 repairs without out consequences, even on race tires. But in the eyes of the law, those were not acceptable repairs. I think it might be 2006 model year cars will be required to have tire pressure monitors as part of the EPA vehicle emissions requirements. Low tire pressures reduce fuel economy and increase emisions per mile. Some vehicles use the ABS sensors to detect deflating tires.

Any loose connections from the battery to the starter can cause a similiar problem. Removing fuses and using a test light , is a proceedure to test for current drains. You do not have a current drain, you have a voltage drop ( high resistance) between the battery and the starter. This can be on positive circuit or on the negitive circuit. Are the cables tight at the battery?

Immobilizer is preventing you from starting. Close all the doors and hoods. Activate the alarm, and wait 60 seconds. Then activate the button on the key to diaarm the alarm, and then get in to start the car. Tell us how it works, Thanks Gary