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2002 Subaru Legacy Wagon - Fuel tank vacuum unit has ...
Sent to Car Experts October 18 10:10 AM

2002 Subaru Legacy Wagon, 90,000 miles - Fuel tank vacuum unit has caused Check Engine Light suddenly to come on at highway speeds and stay on until reset. Dealer has reset the computer and cleaned out the associated tubing, etc. several times, but the problem reappears. What next should be done to correct this malfunction? Does the computer logic trigger the light for a single "failure", or does it require several "failures" detected before coming on?

 

Optional Information:
2002 Subaru Legacy Wagon 2.5 Liter four

Already Tried:
See my question.

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Info Request
October 18 10:13 AM (3 minutes and 6 seconds later)
         
REPLIED to Info RequestCheck Mark

Hello,

If you have the diagnostic trouble code that was retrieved from the computer, i can look up ALL the info that you need to fully understand the system.



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Virtual Wrench -- ASE Master Tech . -- 99% Positive Feedback on 1888 Car Accepts
A.S.E. 29 years/Master Tech. Foreign and Domestic
Reply
October 18 10:18 AM (4 minutes and 19 seconds later)
         
Standby while I take the car in for the latest reset of the Check Engine Light. I expect to know no later than tomorrow.

What must I do to send the code number to you?
Customer (name blocked for privacy)
Info Request
October 18 10:19 AM (1 minute and 5 seconds later)
         

 

Just enter it right here at your convience,,i'm in no hurry :-)



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Virtual Wrench -- ASE Master Tech . -- 99% Positive Feedback on 1888 Car Accepts
A.S.E. 29 years/Master Tech. Foreign and Domestic
Reply
October 18 10:32 AM (13 minutes and 6 seconds later)
         
Reply to Virtual Wrench's Post: Code 1443 for my Subaru Check Engine Light problem.
Customer (name blocked for privacy)
Answer
October 18 10:44 AM (11 minutes and 44 seconds later)
         
ACCEPTEDCheck Mark

WOW,,is it tomarrow already :-)

Here is the technical read on that code. It may not make alot of sense, but basically it comes down to a leak in the Evaporative emissions system that keeps the fuel vapors from entering the atsmophere.

I have also included a diagram showing all of the components in the system, look for any of the small hoses to be disconnected.

ALSO,,,i have seen faulty gas caps cause this same code many, many times. It has to completly seal, or it leaks and the computer picks it up. You may not be able to visably see if its bad, and you might just want to take a chance and just replace it.

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Thanks for asking!



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Virtual Wrench -- ASE Master Tech . -- 99% Positive Feedback on 1888 Car Accepts
A.S.E. 29 years/Master Tech. Foreign and Domestic
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