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2002 Passat: used 1.8l turbo replaced..I drove..runs ok..vacuum leak…

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Just had a used 1.8l...
Just had a used 1.8l turbo replaced in my daughters 2002 Passat and when I picked it up it ran fantastic. I drove itover 300 miles to her home in Pittsburgh, Pa. and when she went to her employment(hospital) I got a phone call. It suddenly would not idle, but runs ok off idle, which suggests a fuel/air problem or vacuum leak. My Son-in-law sent me pictures of the engine, and there's a 1/2 "tube running along the head toward the air intake tubing that has an open end. Son-in-law says it looks like a red plastic material residue in the interior of tube. Car runs fine off idle. I suggested taping the tube closed, and then the car began backfiring and throwing black smoke out of tailpipe. I should mention that the technicians who repaired(exchanged) the engine explained that the Mass airflow sensor had been torn from the harness, and they had to repair and install a new MAF. Son-in law has noticed that 2 wires are present at MAF, and he wondered if more than 2 wires are needed. Advise
Submitted: 8 years ago.Category: VW
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Answered in 25 minutes by:
6/20/2010
VW Mechanic: vwtech0405, VW Technician replied 8 years ago
vwtech0405
vwtech0405, VW Technician
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Is there anyway you can upload the picture on here??
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Customer reply replied 8 years ago
sorry, tried . I'll try one more time. nope, no can do forget it. I'll use local talent.
VW Mechanic: vwtech0405, VW Technician replied 8 years ago
let me know if you more help
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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.

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