UK Car

UK Car Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

UK Car
This answer was rated:

This is a tough one. My Porsche Cayenne turbo 2003 will not

Hi, this is a tough...
Hi, this is a tough one. My Porsche Cayenne turbo 2003 will not talk to any diagnostic computer. I've tried em all-and paid for it!
We have then looked for a gateway control unit and can't find one anywhere...
JA: What is the model of your '03 Porsche?
Customer: 4.5 turbo
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: No. It is languishing in a garage at the moment. I bought a spare gateway control unit as we thought the old one must be faulty as there is NO communication at all, even though there is power to the socket
JA: Anything else you think the mechanic should know?
Customer: Well, there is now a misfire, but it obviously can't be solved easily without some diagnosed
JA: How many miles are on the car? Is it a steady misfire? Or random?
Customer: After it gets warm, engine management light comes on and it limps then . Works fine when cool
Show More
Show Less
Ask Your Own UK Car Question
Answered in 30 minutes by:
8/31/2016
Wolfgang
Wolfgang, Master Vw/Audi Tech
Category: UK Car
Satisfied Customers: 4,871
Experience: 15 yr Master VW/AUDI Technician Shop Foreman
Verified

Thanks for choosing Just Answer . I'm Wolfgang here to help!!

I am confident we can resolve your problem together. Please
understand that I don't know your skill level. In most cases when you have a problem
with the way the vehicle performs, specialized tooling is required to acquire computer
data/information or engine testing results. We didn’t build these complicated vehicles; we
just diagnose and fix them. Also understand that I can't see, smell, hear, or touch the
vehicle either, so it may take a few replies to get to satisfactory results.

Note there may be an issue where the complexity of the issue will require a Premium Service. This service will be an addition to the normal question cost. Usually it does not come down to this but keep in mind!!

I am also going to direct you with the fastest, easiest and most common things to check first. Please be
patient and permit me to do what I do best.
I also try to give all of the information you may need, expecting a “positive rating” in
return. I will also continue assisting you after you have rated me, if necessary. If there
is any reason I cannot get a positive rating, please let me know why “in advance”, so I
can go another direction for you. I am sorry you’re having this problem; I’ll help you
through it.
Below is my first answer or request for more information. If you do not understand it, or you need more information from me, or need me to go in more detail.

I do need a vin # of the vehicle and do you have an oscilloscope need to see why the can wires are not communicating correctly for the scan tool

Ask Your Own UK Car Question
Customer reply replied 1 year ago
Vin no is
WP1zzz9pz4La80215
Customer reply replied 1 year ago
Wires have been tested and there is power to the testing socket

that power is a 12 volt power to power up some scan tools. this is communication wires which have a high and low signal and must mirror each other but as a ppsitive and negative voltage. so that is why the oscilloscope is needed for testing.

let me see what i can find

Ask Your Own UK Car Question
Customer reply replied 1 year ago
Ok thanks! Please note that we have looked everywhere for a gateway control module, and can't find one. It's supposed to be birthing the glove box
Customer reply replied 1 year ago
Behind

note your vehicle does not have a separate gateway module . the gateway is incorporated with the instrument cluster on your vehicle!! so the communication architecture is totally different than the later cayenne's from 2006 and above!!!

Ask Your Own UK Car Question
Customer reply replied 1 year ago
why won't any computer talk with it then? I can't get rid of errors like suspension and occasionally abs, cruise control doesn't work, various lights ping up errors, reverse sensors don't work... And no communication! :(
Customer reply replied 1 year ago
if the instrument cluster is faulty can I replace it with a later version, say 2005/2006? I heard that you can't replace them as they need a specific code

do you have VAG COM (VCDS) by Ross Tech cable?

if not what scan tools you have?

Ask Your Own UK Car Question
Customer reply replied 1 year ago
I will find out. Please let me know what to do if I can't get a diagnosis. Thanks

with vag com there is a light on the cable that tells you if the can lines have an issue.

Ask Your Own UK Car Question
Customer reply replied 1 year ago
No issues with the can lines but the vag com will not talk with any ecu

with the vag com cable is the light green or red when plugged in?

Ask Your Own UK Car Question
Customer reply replied 1 year ago
It's green but flashes red when trying to connect.

OK THE COMMUNICATION BUS DO THIS USE VCDS AND THEN SELECT OPTIONS AND THEN TEST WITH THE CABLE CONNECTED . WHAT DOES IT SAY ? PHOTO PLEASE OF THE RETURN MESSAGE.

THANKS

Ask Your Own UK Car Question
Customer reply replied 1 year ago
Hi Wolfgang ! Sorry I haven't been able to get a photo yet. The instrument cluster is being sent away to be checked and possibly repaired. This will take 5 working days. I hope you can bear with me-I appreciate the advice!
Sam

ok sam!!!

Ask Your Own UK Car Question
Customer reply replied 1 year ago
Hey Wolfgang ! Hope you remember me?;) the instrument cluster came back with no faults, but as the engineer was building the car back up he tested it and he had some communication! The annoying bit is that the limp mode that occurs when the engine gets above 65c is not showing. Also I have no idea what the actual problems are. He has said ecu remap from tech art might be the problem, but I am reluctant to change that. I'd welcome any opinions from you, but I don't expect you to have to answer all these problems!
Many thanks
Sam

hey i do need all of the codes please on this then so i can see all what is related or not

thanks

Ask Your Own UK Car Question
Customer reply replied 1 year ago
The car has been in the garage for 7 weeks now
What happens if the codes are cleared and then re scanned what codes come back?
Ask Your Own UK Car Question
Customer reply replied 1 year ago
He has just said "the codes clear when they want to and come back when they want to"?

all of the same codes? it sounds like they are giving you the run around!!! what codes come back? there are so many need to have a good starting point of the codes that come back right away!!

Ask Your Own UK Car Question
Customer reply replied 1 year ago
These are his last words so far today by text:
"They are random pal... one minute it's clear the following they are back"
I suppose what really worries me is I will get the car back and it will not be fixed.. I really appreciate the long range effort Wolfgang ! I will try and see if they are specific codes, but this is what he has said. Hopefully talk to him later

ok !!

Wolfgang
Wolfgang, Master Vw/Audi Tech
Category: UK Car
Satisfied Customers: 4,871
Experience: 15 yr Master VW/AUDI Technician Shop Foreman
Verified
Wolfgang and 87 other UK Car Specialists are ready to help you
Ask your own question now
Customer reply replied 1 year ago
Hi Wolfgang ,
Just wanted to give you a final update. It cost me £480 with the garage, and all the errors came back, and the misfire. I bought 6 coil packs to change the remaining ones. It I didn't need them in the end. Some of the soldering was duff on the lpg connections and maybe were damaged when removing the engine covers.
I have just had the air suspension overhauled(£50) with new rings etc and now only have back brake light error due to led upgrade by techart!
So I just wanted to say thanks for all the help!
Sam
Ask Wolfgang Your Own Question
Wolfgang
Wolfgang
Wolfgang, Master Vw/Audi Tech
Category: UK Car
Satisfied Customers: 4,871
4,871 Satisfied Customers
Experience: 15 yr Master VW/AUDI Technician Shop Foreman

Wolfgang is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Marty

Marty

European Car Expert

416 satisfied customers

ASE & Bosch Certified Master Tech. Over 30 years experience.

Greg

Greg

Shop Owner

1,323 satisfied customers

17 years Shop Owner /Technician. 27 years experience,

Richard

Richard

UK Car Mechanic

615 satisfied customers

12 years as a technician at a Ford and Jaguar dealer Ford and Jaguar factory certified

Matt

Matt

Mechanical Engineer

4,638 satisfied customers

BEng hons Mech engineering, in auto industry 22 years

Trevor

Trevor

UK Car Mechanic

853 satisfied customers

NVQ 3, Modern Apprenticeship, MOT Tester, 15+ years experience diagnostic technician

Rob

Rob

UK Car Mechanic

823 satisfied customers

city and guilds level 1 2and 3. mot tester , 28 years experience set up training college in afghanistan

martin jones

martin jones

UK Car Mechanic

640 satisfied customers

25 years as a mechanic and mot tester, owned own business for 10 years city and guilds trained

< Previous | Next >

Related UK Car Questions
Yesterday I lowered the roof on my 2004 bmw 645ci, As I
yesterday I lowered the roof on my 2004 bmw 645ci , As I tried to raise the roof no faults came up and it would not operate , checked all fuses and all ok , raised the roof manually abd locked it in p… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,410 satisfied customers
Had new battery fitted now the alarm keeps going off. WG60
Had new battery fitted now the alarm keeps going off … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,410 satisfied customers
'When I fill the tank the fuel guage on my 02 Volvo V 40
'When I fill the tank the fuel guage on my 02 Volvo V 40 still registers zero. … read more
internal88
internal88
Product Manger
Bachelor\u0027s Degree
2,423 satisfied customers
Does anyone have any information on the fuel system on a
Hi, does anyone have any information on the fuel system on a 2000 Deawoo Musso 2.3 petrol. I require the fuel pump relay location and part number. Cheers… read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
I've a Mazda 6 2.2D Skyactive 2013. Having problems with
Hi. I've a Mazda 6 2.2D Skyactive 2013. Having problems with "Vehicle Systems Inspection Required" warning. Intermittent fault which resets when engine turned off. Only DTC is U1900 which may be false… read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
It is overheating on short slow drives as in 2km as well as
Hi It is overheating on short slow drives as in 2km as well as on the freeway. Fitted a new radiator 2 months ago and car was going fine . Just last two days a problem. … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
My Tata Safari has stopped moving, the Engine is running but
My Tata Safari has stopped moving, the Engine is running but the car will not move. I was driving though France, near Rouen when the engine revs started to fluctuate but when I took my foot off the ac… read more
Matt
Matt
Mechanical Engineer
Bachelor's Degree
4,638 satisfied customers
I have a Nissan Altima 2009 2.5L had a recent oil change.
I have a Nissan Altima 2009 2.5L had a recent oil change. Running good then idle miss ( one month later) , there was previous reduction of MPG about 2 or 3MPG, and got codes P0117, P0118, P011. I rece… read more
Tom
Tom
Vocational, Technical or Trade School
21 satisfied customers
Jeep Grand Cherokee 2009 3.0 CRD. From time to time the
Jeep Grand Cherokee 2009 3.0 CRD. From time to time the transmission dont shift gear. Trying manual shif but no reaction. Still in D. Turn off engine and start again and now it works. … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
We accidentally tried to start it without the down. We tried
We accidentally tried to start it without the down … read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
Azera 2011 jams its movements up and down,back and
azera 2011 jams its movements up and down,back and forth.sometimes it … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
I have ford Edge 2017, and only one key fob. I read in the
I have ford Edge 2017, and only one key fob. I read in the manual that to reprogram another key I need 2 working key fobs. How can I reprogram another key without going to the expensive ford dealershi… read more
Expert
Expert
15 satisfied customers
I have a 2006 focus 1.6 petrol variable inlet and exhaust
Hi I have a 2006 focus 1.6 petrol variable inlet and exhaust cam it has the code P0016 corrolation of cam and crank the cambelt timing is correct and has been checked 3 times there is signal from both… read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
I have a t2014 toyota Corolla and I cant open my car trunk
I have a t2014 toyota Corolla and I cant open my car trunk with the inside lever? … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
Changed fuel filter vivaro 2005 and used primer bulb to draw
Changed fuel filter vivaro 2005 and used primer bulb to draw fuel up to mainline but after starting the main line runs dry and no more fuel come into it without priming it again… read more
EricFromCT
EricFromCT
Auto Technician
3,939 satisfied customers
I have a 2007 330i (E90) and it showing error code CC ID 168
Hi - I have a 2007 330i (E90) and it showing error code CC ID 168 (transmission malfunction). There are no symptoms but the light makes me concerned. … read more
Peter Zavarelli
Peter Zavarelli
General auto certifications
269 satisfied customers
I can't get the Bluetooth on my 2016 Mini S to connect to my
I can't get the Bluetooth on my 2016 Mini S to connect to my iPhone 7. I have followed all the instructions on the car and in the car manual and nothing works! Help! … read more
Steve
Steve
Master\u0027s Degree
954 satisfied customers
A 11/12 year old Nissan Micra which I bought 2nd hand. Never
HI, a 11/12 year old Nissan Micra which I bought 2nd hand. Never had any problems and now suddenly battery is draining within hours. Called out the AA who said problem with battery so paid for a new o… read more
Steve
Steve
Master\u0027s Degree
954 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x