This article provide by one of my blog reader,and i rewrite it to share How to solve Prosche Cayenne accelerate slowly.Hope you can find some useful info from it .Below show the experience of Tom.
I have a 2006 Porsche Cayenne Turbo S and noticed an odd issue just recently.
Upon heavy acceleration I’ve noticed a “staggering” or “shuddering” issue with the vehicle. There is no rough idle issues or idle problems when keeping RPM’s high (even in the 4k – 6k range), but only when I “get on it” and give the car some acceleration.
It doesn’t happen in any particular gear as well – only when accelerating hard. When the misfires start occurring, the entire car (including cabin) shakes rather violently.
I also have not experienced any transmission specific issues (i.e. high rpm’s and a mis-shift or extremely hard shifts).
When I brought Porsche Piwis 2 into the dealer today, I brought one of the tech’s out to take a ride with me. I went through and immediately was able to re-create the issue. The repair man connect Porsche Piwis Tester II and my car, at the end of the ride, my check engine light finally turned on…I was pretty happy about this because the dealer was telling me that it’s hard to get Porsche to provide warranty work if there is no check engine light (is everyone else’s experience the same with dealerships)?
The codes stated that there was a cylinder 6 misfire and the tiptronic transmission flag was also presented. The standard procedure from what they told me is to replace the ignition coils (and of course it’s on the tough side to replace – engine torque mount – you name it).
vehicle coverage up to 2018: 911, Macan, Cayeme, Panamera, Boxter Cayman
Fast and stable connection Simulation mode ( diagnostic session without VCI connection )
Support online immobilizer programming
New DoIP diagnostic technique based on Ethereum for post-2017 Porsche
Developer mode enabled
What’s the difference between PIWIS II and Piwis 3:
PIWIS Tester III covers all new Porsche models like new Panamera 971, Cayenne 9Y0, Cayman 981 GT4 clubsport, etc., which are not supported by PIWIS II at all and will never be supported in the future. PIWIS Tester III also supports full range of diagnostics functions for all the Porsche models which have ever been released.
What can you do with Piwis 3 v37.250.015:
Diagnostics application is used for communication with control units. You can search for, identify, code and control program units, read out the event memory, execute complex processes, change drive links and execute routines.
Guided fault finding (GFF) generates a test plan for a fault code. This test plan shows the best sequence for carrying out tests. GFF compiles a list of recommended tests, documents and wiring diagrams
Actual values/input signals functions displays you the actual values and input signals of control units
Drive links/tests function displays the drive links of control units, allows you to change the parameters of these drive links and run test routines for individual control units
Maintenance/repairs function group – use this function to call up control unit-specific processes that cannot be implemented generically from the ODX data
Coding/programming function group – use this function to write coding values. Values can be coded automatically or set manually. This function group includes (Automatic coding, Manual coding, Customer-specific settings and Factory settings) coding modes
Logging – use this function to activate logging for diagnostics, guided fault finding (GFF) and measuring equipment applications. Temporary and permanent working log can be created
Filter – use this function to limit the view of the control units installed in the vehicle. In the diagnostic application you can create, edit, activate, deactivate or assign filters
Wiring diagrams application is the representation of physical connections and layouts of circuits
Measuring equipment interface is used for DC and AC voltage measurement, direct and alternating current measurement, diode testing, resistance measurement, continuity/open circuit testing, showing voltage, current and resistance over time (oscilloscope function)
Which Porsche model and year can be done with Piwis 3:
Piwis 3 is confirmed to work with all Porsche from 1998-2018:
Porsche 911(997) (991)
Cayenne up to MY 2010
Cayenne from MY 2011
Especially the latest models:
Paramera (971) 2018
Caynenne (92A) 2018
Macan (95B) 2018
911 (991) 2018
and other old models
Update Method: By CD or HDD (One Year for Free, It can not be updated online. 200USD for one time update after one year.) Software contains operating system win XP only. you just need to insert into your computer and use it.
Requires Online Modules: (F BCM R BCM DME ELV SRS KEY)
Bluetooth,GPS and Navigation Function are available. But you need to pay for the authorization of them.
Support Key Programming function,cost 210USD per time ( you need consult our customer sevice first with the type and year of your car)
Warning: Please do not take out the hard disk from CF-30 laptop and install on other laptops, it may cause data lose and hard to recovery.
Piwis Tester II Functions:
1. Read/clear error code, catch data stream, computer programming match, component test, maintenance information consult, components site drawing, wiring diagram.
2. Piwis Tester II works with the old and latest Porsche cars. It is equipped with the Panasonic laptop and original software for the test. Porsche Piwis Tester II can help you diagnose and program the most new and old kind of Porsche cars. For example: 911(997)(991), Boxster/Cayman, (987), Cayenne up to MY 2010, Cayenne from MY 2011 and Panamera.
3. New Panamera can only be diagnosed by using Piwis Tester II. Based on current project planning, all earlier vehicle models will gradually be changed over to the new Piwis Tester II by the end of 2010. Piwis Tester I must be used for older models in the Porsche workshop until end of 2010.
4. Support for Porsche. Piwis Tester I will no longer be available once the earlier diagnostic programs have been transferred to Piwis Tester II.
5. When Piwis Tester II is distributed, it will contain one basic piece of software. This is necessary in order to start and configure the tester.
Piwis Tester II Support Systems:
ENGINE automatio transmission, air-conditioner, SRS, ABS, ASR, MPL, GM, Original antitheft System,KEYLESS GO system, OBDII system.
Piwis Tester II Vehicle Coverage:
1. 911(997) (991)
2. Boxster/Cayman (987)
3. Cayenne up to MY 2010
4. Cayenne from MY 2011
6. Support Porsche Cars Till 2018
Piwis Tester II Packing List:
1.1pc x Piwis Tester II VCI
2.1pcs x OBDII Cable
3.1pcs x USB Cable
4.1pc x Used PANASONIC CF30
5.1pc x platic box Piwis Tester II After Sales Service:
1. One year free maintenance
2. One year free updating
3. Long-term technical support
FAQ: Q1: How to accomplish Piwis Tester II online function?
A1: Piwis Tester II online is via Team Viewer remote control, globally available.
Q2: How to handle with 90 days locking about Piwis Tester II?
A2: Piwis Tester II timing is unlimited, always showing 90 days.
Q3: How much software update charges for per year?
A3: The first year software update fee is free.
Q4: How to update Piwis Tester II?
A4: By CD or HDD. When you want update. you can contact with our customer service as well
Q5: If it is showing Porsche Logo when booting computer?
A5: Yes, CF-31R, CF30K are with Porsche Logo when booting computer.
Q6: License Validity?
A6: To support ONLINE function, valid certificate must be available for Piwis Tester II.
Q7: Where could get Laptop Power-on Password?
A7: Normally ours is piwis-3456, or piwis-4567. Or you can see the stickers on laptop. (Attached pic shows). If there is any problem, can contact customer service freely.