Cold Weather Start - Throttle Fault - Porsche Macan Forum
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post #1 of 14 (permalink) Old 01-06-2015, 02:30 PM Thread Starter
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Default Cold Weather Start - Throttle Fault

Yesterday I started my Macan after work and was greeted by a dash full of yellow warnings. PASM/AS, Drivetrain Fault, PSM Fault, Engine Controller Fault, ACC/PAS Fault. Car had sat outside for 10 hours in -8F warming to 2F during the day. Not the first time its been started near 0F, as just last weekend it started in Hayward after a -20F night.

Called and then drove straight to the dealer for them to pull codes. Turns out it was a throttle actuation fault, which since its on the same communication bus as everything else, cascaded the fault message to all the other systems. No mechanical issue with the throttle, and my opinion is its likely a calibration issue for delaying the fault code for cold start-ups rather than a mechanical one.

A Cayenne from 2014 was 5 minutes behind my car at the dealer, with the exact same faults and issue. (Same software build). Dealer cleared the codes, checked the throttle, remapped it, and sent me on my way with the ask to monitor and call if it happens again. No software or cal update available at this point.

Just a heads up to others as this cold snap extends across the country.
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post #2 of 14 (permalink) Old 01-06-2015, 02:34 PM
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Thanks for the heads-up @TripleZ !!

Mines sitting outside of work right now so I'll be hoping for no issues at the end of the day. ...although I'm already heading to the local dealership after work to pick up a set of winter mats
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post #3 of 14 (permalink) Old 01-06-2015, 03:04 PM
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What is the cca of the battery? Is it heavy duty? Anyone,anyone,Buler? Sorry I couldn't resist. I'm off today,bored and yearning for my S to play in the snow here (only two inches).
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post #4 of 14 (permalink) Old 01-07-2015, 07:42 PM
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I am having the same problem with mine , 2015 Macan s with only 4500klm on mine and i took mine to the Winnipeg dealer and they could not find out what is happening , so i guess i wait until it breaks down somewhere when it's -40 , plus has anyone had a problem with down shifting from 2-1 in the automatic mode? hard shift 2-1 even in low rpm's , i guess these suv's are not made for the extrem cold canadian winters!
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post #5 of 14 (permalink) Old 01-07-2015, 07:47 PM
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Originally Posted by Gordo View Post
I am having the same problem with mine , 2015 Macan s with only 4500klm on mine and i took mine to the Winnipeg dealer and they could not find out what is happening , so i guess i wait until it breaks down somewhere when it's -40 , plus has anyone had a problem with down shifting from 2-1 in the automatic mode? hard shift 2-1 even in low rpm's , i guess these suv's are not made for the extrem cold canadian winters!
If you search a bit, there's some talk on here about a software update to fix that.

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post #6 of 14 (permalink) Old 01-07-2015, 09:56 PM
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It's funny that the dealers keep's telling me that there are no updates and they have not heard about any problems with the faults and anyone having transmission harsh shifting problems , go figure
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post #7 of 14 (permalink) Old 01-07-2015, 10:17 PM
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Originally Posted by Gordo View Post
It's funny that the dealers keep's telling me that there are no updates and they have not heard about any problems with the faults and anyone having transmission harsh shifting problems , go figure
Could be true for those particular dealers....

Hopefully someone with experience will post up and maybe know technical details on the fix.

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post #8 of 14 (permalink) Old 01-07-2015, 10:23 PM
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Quote:
Originally Posted by TripleZ View Post
Yesterday I started my Macan after work and was greeted by a dash full of yellow warnings. PASM/AS, Drivetrain Fault, PSM Fault, Engine Controller Fault, ACC/PAS Fault. Car had sat outside for 10 hours in -8F warming to 2F during the day. Not the first time its been started near 0F, as just last weekend it started in Hayward after a -20F night.
Only -20?

I got to really remember NOT to move to WI

Do they sell block heaters for these cars?
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post #9 of 14 (permalink) Old 01-07-2015, 11:31 PM
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Originally Posted by Gordo View Post
It's funny that the dealers keep's telling me that there are no updates and they have not heard about any problems with the faults and anyone having transmission harsh shifting problems , go figure
I had a problem with rough downshifts. Took it in and they did a software update and the problem went away until today. With all the cold, it seems to be happening again but not often.

I certainly don't want to get stuck in this cold. One of the reasons I got a Porsche was that they are supposed to be of such high quality. Here's hoping I am right.
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post #10 of 14 (permalink) Old 01-08-2015, 12:21 PM
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That is the same reason why i sold my 2013 volvo xc60 r-design for this , i just hope this car is not a lot of smoke and mirrors.
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