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It idle high in the morning when I start up. And after about…

Customer Question
It idle high in...

It idle high in the morning when I start up. And after about 2 mintues. I goes back to normal

Mechanic's Assistant: How many miles are on the car? What size is the engine?

125,000. 4.8l

Mechanic's Assistant: What is the model/year of your Porsche?

2008 Cayenne S

Mechanic's Assistant: Are you fixing your Cayenne yourself? What have you tried so far?

I would like to fix it myself. I haven't done any repair

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I got a code PO455. But the idling problems has been happening for awhile. This code just came up in the last week ALso, I got a code P2181

Submitted: 7 months ago.Category: Porsche
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Answered in 3 minutes by:
12/9/2017
Porsche Mechanic: Gary, ASE Certified Technician replied 7 months ago
Gary
Gary, ASE Certified Technician
Category: Porsche
Satisfied Customers: 1,922
Experience: Senior Technician
Verified

Hello! My name is Gary.
Welcome to JustAnswer.
I'm reviewing your question now, and will post back with a reply shortly.

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Porsche Mechanic: Gary, ASE Certified Technician replied 7 months ago

Hello there,

You might find if you change the evap purge solenoid for the P0455, the idle issue will be improved.

They do run faster than normal hot idle when cold, all cars do.

Gary

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Customer reply replied 7 months ago
Is that something somewhat easy to do?
Porsche Mechanic: Gary, ASE Certified Technician replied 7 months ago

Easy enough to do.

You to replace the solenoid, preferably with a genuine part.

Gary

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Customer reply replied 7 months ago
Hello?
Customer reply replied 7 months ago
No live phone call
Porsche Mechanic: Gary, ASE Certified Technician replied 7 months ago

I'll opt out, so a US tech can speak with you.

Gary

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Porsche Mechanic: Wolfgang, ASE Certified Technician replied 7 months ago
Wolfgang
Wolfgang, ASE Certified Technician
Category: Porsche
Satisfied Customers: 5,219
Experience: Ase Master Tech L1 L2 advanced diagnosis certified 15 yr technician
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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
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