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        General >> Problems >> MOT failure (posted for new member silverstone)
        
(Message started by: scorpio_man on Oct 30^th, 2010, 9:51am)

Title: MOT failure (posted for new member silverstone)
Post by scorpio_man on Oct 30^th, 2010, 9:51am

I hope you can advise.

My 2ltr 1998 Scorpio has failed on emissions.
fast idle test r p m min 0.300-0.575
2nd fast idle 0.300-0.574 .
nat.idle 0.500-0.863.
I want to have some idea of what is probably needed,so I
have some defence against being ripped off.

cheers

Title: Re: MOT failure (posted for new member silverstone
Post by scorpio_man on Oct 30^th, 2010, 9:55am

hi there

how is the car running generally?
has it been serviced recently?
what's your MPG like? about normal?

come back to us with a bit more detail, but things to check are air filter, lambda sensor (this can be checked with a meter or using an OBD2 reader) and the cat.

check also that you have no air leaks around the throttle/manifold area.

hth

Title: Re: MOT failure (posted for new member silverstone
Post by scorpio_man on Oct 30^th, 2010, 10:00am

hi again

also post where abouts you are as some members have OBD2 readers and might be able to help.

hth

Title: Re: MOT failure (posted for new member silverstone
Post by Mike H on Oct 30^th, 2010, 12:10pm

on 10/30/10 at 09:55:55, scorpio_man wrote:

things to check are air filter, lambda sensor (this can be checked with a meter or using an OBD2 reader) and the cat.

check also that you have no air leaks around the throttle/manifold area.

hth

Yep I'd go along with that, also, 'cause mine used to get so sooted up, the EGR valve would stick, couple of times cleaning it got it through the emissions.

Hint ~ need to take the air filter element out and look at the underside, cos that's where the air comes in, just looking at the top of it with the cover off doesn't tell you a lot ;D

Even better look through it against sunlight

Title: Re: MOT failure (posted for new member silverstone
Post by silverstone on Nov 1^st, 2010, 7:49pm

Thanks for the advice.I was told that the engine was"hunting"slightly under idling test.It is running really well the mpg is,I believe,about normal.It has not had a long run recently,only 20- 30 mile trips at most.grateful for any other advice.
( I am inMilton Keynes area)