20 replies to this topic

[cbyrne]

hi my spi failed horribly on its mot the emissons are double what its ment to be has any one any ideas?? the oil temp was 98oc i fitted a new lambda sensor last week any help taken on board

[minidaves]

hi my spi failed horribly on its mot the emissons are double what its ment to be has any one any ideas?? the oil temp was 98oc i fitted a new lambda sensor last week any help taken on board

normally an air leak causes these problems, check the vaccum pipes on the manifold to air filter and ecu and also make sure they are doing the correct test for a mini and not a normal cat test

dave

[cbyrne]

when you say a mini test what do you mean??

[cooperdan]

Have you got a cat on it?

[cbyrne]

yes cat is in it its the standard pea shooter. ha i checked vacume lines all is ok there i will try another lamba sensor in it.

[robtheplod]

also make sure they are doing the correct test for a mini and not a normal cat test

I'm not aware of this either, what different test is supposed to be done on a mini with a cat thats different to a normal cat test? cheers!

[the.stroker]

tell us your CO and Hydrocarbon readings!

[R1minimagic]

Could be a buggered cat, also check your spark plugs are not buggered up. Is it burning oil?

[cbyrne]

i removed the vac line to the ecu to find its full of petrol removed new lamba sensor and found its faulty. regards to the emissons any thing above 0.3% low idle is a fail i red 6.97% and high idle is 1.5% and 200HC i red 10.6% and 290HC i have replaced the lamba sensor but the vac line full of petrol is worring me!!

[cbyrne]

not burning oil thank fully.

[minidaves]

any test station should have the readings aloud for all production cars and a mini has its own readings like up to 1.09 on the lamda,

dave

[cbyrne]

i have changed the lamba wwhen i took it out and shook it it sounded like all the internals were moving around

[dwealds]

I am having similar trouble with my Mpi at the moment, turned out the majority of my trouble was coming from a bad joint in the exhaust even thought it looked and sounded normal, but I can't get the lambda down under 1.27. It is a stage 4 so emission trouble is to be expected.

Will putting a new lambda sensor in make any difference as the reading is taken from the tailpipe and not the sensor itself?

Dan

[minidaves]

1.27 to me looks like an airleak on the exhaust

dave

[Minigirlracer]

When I've took mine for an MOT before it failed and a friend said to take it for a good drive before hand which I've found helps as its nice and warm when you get to the MOT garage. Dunno if it does work or not but has worked for me since