Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Oct 2014
Posts: 164
Failed emmissions

1984 Porsche 911 3.2
Took it out of my garage today for first time in 4 years .Took it for its MOT.And failed on emissions Co 12.5.
Last time i took it which was 4 years ago it passed.Since the last MOT and this one it has only done 300 miles inbetween mots.
Old 02-19-2019, 12:11 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Porsche 935's Avatar
 
Join Date: Dec 2013
Location: Spring Hill, Florida
Posts: 357
Garage
Old gas ?
__________________
3.3 ltr, stock compression, efi, twin turbo - no intercooler.
Old 02-19-2019, 12:33 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Hi
 
Targa Me's Avatar
 
Join Date: Jan 2007
Location: Southern CA
Posts: 1,860
Garage
Old gas, old oil.
__________________
"A good sense of humor is the best thing to have in your toolbox when working on these cars."

Quote by Charles Freeborn, Pelican.
Old 02-19-2019, 01:01 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
M5guy's Avatar
 
Join Date: Nov 2007
Posts: 285
When I failed emissions in the US in an 85 non-US 911, the car needed an oil change and I on,y drove 5 minutes to the inspection station. A mechanic told me to change the oil and make sure the car was warmed up throughly. Went back under these conditions and passed with flying colors.
Old 02-19-2019, 01:08 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Oct 2014
Posts: 164
I changed oil,
Drained fuel put new in.
Took it out for about an hour ,give it a bit of stick to give it a clear out..
Very strange as last time it was perfect.
Old 02-19-2019, 01:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
Join Date: Oct 2008
Location: Denver, CO
Posts: 1,827
David -- still think this is linked to the issue you raised in your other post regarding a bouncing idle -- both high CO and bouncing idle are generally caused by too rich of a mixture. While there are a few threads that discuss how one can set the mixture by measuring the voltage from your 02 sensor, it's likely best to have a 911 knowledgable shop do it with proper sniffers/procedure.
Old 02-19-2019, 02:06 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered User
 
Join Date: Sep 2010
Posts: 2,320
Garage
David, after 4 years I would do a complete tune up with fresh oil . 40 pounds in the back tires . Drive the hell out of it before shop does the test .
Old 02-19-2019, 03:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 02:46 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.