emissions and spark plugs (2.3 t5 p2 v70)

oo ToNy oo · Nov 27th, 2015, 15:54

last year my emissions only just scraped through on the mot test, what would cause this, how can I lower the emissions. the last mot it had a fairly new air filter, about 4000 miles.
today ive put a new air filter. the spark plugs are at least 15000 miles old, could this cause high emission, new plugs from Volvo are nearly £60, whats the make and model number of the plugs I need, so I can shop around

Bigneil · Nov 27th, 2015, 18:26

Quote:

Originally Posted by oo ToNy oo

last year my emissions only just scraped through on the mot test, what would cause this, how can I lower the emissions. the last mot it had a fairly new air filter, about 4000 miles.
today ive put a new air filter. the spark plugs are at least 15000 miles old, could this cause high emission, new plugs from Volvo are nearly £60, whats the make and model number of the plugs I need, so I can shop around

I have used a product in the past called Cataclean. It is a product added to the fuel that is designed to clean out the fuel system and also clean oily or gunky deposits from the catalytic converter and restore catalyst efficiency.

Those deposits can build up inside the cat if there is not a complete burn in the cylinder, so I guess spark plugs could do it...but so could other issues such as sensors and computers associated with delivering the correct fuel/air mix.

oo ToNy oo · Nov 27th, 2015, 22:50

Thanks

. Ill get some of that tomorow. My mot is on monday so ill see how it goes.
And ill give frf swansea a call for a price on the plugs

Simon Jones · Nov 27th, 2015, 23:21

Which particular reading was high? CO, HC or lambda? Idle or fast idle?

oo ToNy oo · Nov 28th, 2015, 13:05

Its the lambda i think. Mot cert says actual value is 1.015
Max limit is 1030. Thay said thay had to warm the engine up to get it to pass.
Ive got some of that cataclean, ill put it in later.
I got no answer from frf so i couldnt get a price on plugs yet

oo ToNy oo · Dec 1st, 2015, 06:53

The car has failed its mot on rear brakes and a front hose, theres no emissions sheet, im guessing ill get that once its passed. So its passed the emissions, it drives smoother sinse i used cataclean

Nov 27th, 2015, 15:54	#1
oo ToNy oo Member Last Online: Sep 9th, 2021 20:39 Join Date: Apr 2014 Location: wolverhampton	emissions and spark plugs (2.3 t5 p2 v70) last year my emissions only just scraped through on the mot test, what would cause this, how can I lower the emissions. the last mot it had a fairly new air filter, about 4000 miles. today ive put a new air filter. the spark plugs are at least 15000 miles old, could this cause high emission, new plugs from Volvo are nearly £60, whats the make and model number of the plugs I need, so I can shop around

Nov 27th, 2015, 22:50	#3
oo ToNy oo Member Last Online: Sep 9th, 2021 20:39 Join Date: Apr 2014 Location: wolverhampton	Thanks . Ill get some of that tomorow. My mot is on monday so ill see how it goes. And ill give frf swansea a call for a price on the plugs

Nov 27th, 2015, 23:21	#4
Simon Jones Premier Member Last Online: May 29th, 2024 06:32 Join Date: Feb 2009 Location: Salisbury (ish)	Which particular reading was high? CO, HC or lambda? Idle or fast idle?

Nov 28th, 2015, 13:05	#5
oo ToNy oo Member Last Online: Sep 9th, 2021 20:39 Join Date: Apr 2014 Location: wolverhampton	Its the lambda i think. Mot cert says actual value is 1.015 Max limit is 1030. Thay said thay had to warm the engine up to get it to pass. Ive got some of that cataclean, ill put it in later. I got no answer from frf so i couldnt get a price on plugs yet

Dec 1st, 2015, 06:53	#6
oo ToNy oo Member Last Online: Sep 9th, 2021 20:39 Join Date: Apr 2014 Location: wolverhampton	The car has failed its mot on rear brakes and a front hose, theres no emissions sheet, im guessing ill get that once its passed. So its passed the emissions, it drives smoother sinse i used cataclean

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