my 1999 vw eurovan with 12 valve vr6 is having poor idle issues. They seem to worsen as it warms but occasionally it will kill just after startup...

Hello and welcome to ExpertHelp.com! My name is Relly De Jesus and I'm going to do everything in my power to answer your question to your full satisfaction!

Before we get started, I want to remind you ExpertHelp.com is an independent professional support company. We do not have any affiliation with VW nor are we paid to provide support on their behalf. However, we have helped hundreds of customers with similar questions and believe we can help you too. OK, let’s get started! :)

I’m available to chat now. Please let me know that you are ready by posting a response. I’ll leave my chat session open for the next 15 minutes or so and wait for your reply. If I don’t catch you this time, please respond with a few times (including your timezone) that work best for you and we can connect then.

Hi John

How are you doing? May I ask if you still get error codes on your scanner? Is there any history of crankshaft position sensor replacement? I'll be standing by for your response.

Thank you

Relly

Ok John... is the newly installed engine new or from the yard?

Ok, the crankshaft position installed on the engine may about to fail as well. This issues you are having now can be from a failing ECM or bad crankshaft position sensor. A bad crankshaft position sensor will not give you any cel but since you have one I am suspecting that the ECM is not communicating to the engine properly. You fixed all the necessary things needed and it should be running properly by now. There's a possibility of ECM replacement needed John. Can you get one from the yard and check if it will still throw codes before you pay for it

Great... May I call you on the phone John. Just leave this chat open. Thank you

Ok, will be calling now. It may reflect an unknown number when I call. Thanks John. Please keep this chat page open

Notes:

- Chat and talk to John 

- Fixes made should have solved the issue but to no avail

- The ecm may not be communicating with the sensors that's why it keeps the cel on. It may be giving false codes as well.

- Agreed to replace the ecm

- Call and chat ended

Hi John

How are you doing? This is a follow up regarding my assistance. Please let me know if there's anything else I can add or help you with. I'll be standing by for your response.

Thank you

Relly

Hi John

How are you doing? This is a follow up regarding my assistance. Please let me know if there's anything else I can add or help you with. I'll be standing by for your response.

Thank you

Relly

Hi John

How are you doing? This is a follow up regarding my assistance. Please let me know if there's anything else I can add or help you with. I'll be standing by for your response.

Thank you

Relly

Thanks for your response John. Talk to you soon. Have a good one!

Regards, 

Relly

Hello John

How are you doing? Got your ECU back? I'll be standing by for your response. Thank you

Regards,

Relly

Dear John, It was a pleasure helping you with your VW issue today. Here is a summary of the resolution.

Issue identified : Poor idling issues
Solution Implemented :  Called customer and both agree that the problem can be on the ECU itself. ECU was sent to the rebuilders. Solution Accepted.
If issue resurfaces : Advised to contact us at s**t@experthelp.com or call us on our support number ***-***-**** )