Smelly GTV Phase 3 JTS - Alfa Romeo Forum
You are currently unregistered, register for more features.    
Thread Tools Search this Thread
(Post Link) post #1 of 3 Old 11-08-10 Thread Starter
Status: -
AO Member
Join Date: Apr 2009
Location: United Kingdom
County: Kent
Posts: 15

Member car:


Help Smelly GTV Phase 3 JTS

My GTV phase 3 JTS failed its emissions test first time - black smoke and strange smell! Used some magic stuff recommended by the garage (cataclean) and it passed! But the exhaust still smells - not the 'bad eggs' smell but something else which is toxic. The engine management light is not on which was the case before the second MOT - lampba sensors was the fault recorded.

Is the JTS 2 litre engine just naturally smelly or is there something wrong with the fuel system or the Cat? When cold, black smoke tends to come out (worse in winter).

Also, if it needs a new Cat does anyone know an alternative to the £1200 pounds Alfa want for a new one?

Would be grateful for any help.
chriskath is offline  
Sponsored Links
Status: Living the dream
AO Member
Join Date: Jan 2009
Location: Ireland
County: Kildare
Posts: 167
Black smoke sounds like a fueling problem,

Alfaholics do a s.s sports cat for the GTV for £400 worth a look.

Best of luck getting your problem solved
JETRO is offline  
Status: Living la vida loca!
AO Silver Member
v6junky's Avatar
Join Date: Jul 2005
Location: Spain
County: -
Posts: 2,504
Images: 9
Buy a pattern cat for about 10% of what the OEM cat costs. Don't let the price difference fool you, they work just fine. You wouldn't get the car past type approval tests but for the MOT, they are perfectly good. Here's a quote from Avocet explaining why:

Originally Posted by Avocet View Post
I've been told a story about cheap aftermarket cats...

When the car did it's type approval emissions test, it would have had to meet requirements for emissions of CO, unburned hydrocarbons and oxides of nitrogen. The MOT test in most (if not all?) EC countries, only checks for CO and unbrurned hydrocarbons - the gas analysers for the oxides of nitrogen eing pretty expensive). One of the most expensive elements in a cat is the one that sorts out these oxides of nitrogen, so as nobody checks, they just leave that out! I don't, therefore, think it will bother the car, although a cheap cat might (as has already been said) have other shortcomings. Best thing to do is try to peer down it with a torch and look at the holes in the substrate brick. If they look the same size or a bigger open area that the original, it's probably worth risking (unless your environental conscience won't let you sleep at night 'cause of the nitrogen oxide emissions)!
v6junky is offline  

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa GTV & 916 Spider

gtv , jts , phase , smelly

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

For the best viewing experience please update your browser to Google Chrome