p38 running rich on lpg

J

jerry3

Member

Posts

47

Location

Dorset

• Jun 20, 2018

• #1

Just scraped through the mot on emissions on lpg.
Any one have any suggestions before I take it back to the installer. who says they never have problems.
Systems about 2 years old Prins.
Put additive in petrol tank anyway.
Cheers

 

J

johnnyb70

Well-Known Member

Posts

452

• Jun 21, 2018

• #2

What engine and year?

 

saxavordian

Well-Known Member

Posts

9,292

Location

Behind the canvas in Manchester, England.

• Jun 21, 2018

• #3

Why did you have the MOT emissions on LPG when Petrol would be truer condition.Get the petrol checked first as this maybe giving false reading for LPG running.

 

J

jerry3

Member

Posts

47

Location

Dorset

• Jun 21, 2018

• #4

saxavordian said:

Why did you have the MOT emissions on LPG when Petrol would be truer condition.Get the petrol checked first as this maybe giving false reading for LPG running.

Click to expand...

I guess as its always running on lpg so that's why it was tested like it.

 

mozz smith

Well-Known Member

Posts

1,690

Location

tameside manchester

• Jun 21, 2018

• #5

hi, if the vehicle is running on lpg when arriving for mot it legally has to be tested on lpg i.e. emissions test has to be set on l.p.g. test !!!!!!! if you have been running for 2 years then just buy new filter & sray clean the maf ( not with wd40 ) Any good electrical spray ok .
I presume its a 4.6 2000 era ????, anyway its passed so you got plenty time to check it out , enjoy cheers mozz

 

Grrrrrr

Technician, Bodgit & Scarper Ltd

Full Member

Posts

19,297

Location

Buckinghamshire, UK. ('95 DT)

• Jun 21, 2018

• #6

Should be clean on LPG. Good call on the MAF.

Spark plugs take a bit of a hammering with LPG too.