emition trouble HELP PLEASE

[cerb ian]

i have a mpi 1275 p reg mini that wont pass the idle emmitions for the mot ,at 2000 rpm it is fine and will pass all sencors are working correct,ecu has been re calibrated ,compresion test is good and cat is working HELP

[Iggle Piggle]

which part is it failing?

[DanGT]

If every thing is ok there the one part left is the injectors? Did they you know if you are burning oil or just to rich?

[cerb ian]

not burning oil and the injectors are good

[Iggle Piggle]

but which part of the emissions test did you fail on? Sorry meant to say which reading on the idle test

[GingerWizard]

redex + 99 ron + high speed run prior to testing?

[cerb ian]

emissons at idle are where the problem lies at 2000 rpm they will pass

[Iggle Piggle]

cerb ian said:

emissons at idle are where the problem lies at 2000 rpm they will pass

what emissions though, there are co2 and hidrocarbon tests, which failed and what were the readings

[DanGT]

This amy sound odd but how did you test the sensors and injectors?

[cerb ian]

new sencors have been put on and injectors tested by garage,they say injectors are opening to much at idle which says to me a problem with the auto choke?

[cerb ian]

i will check out what the readings are and get back to you

[GingerWizard]

Tried redex yet? and a good thrash?

[Iggle Piggle]

cerb ian said:

new sencors have been put on and injectors tested by garage,they say injectors are opening to much at idle which says to me a problem with the auto choke?

it sounds like they are taking you for a ride. The garage that did the work does the MOT? Conflict of interest.

[DanGT]

Sencors can be test on the hole quite easy with out being replaced (some intermitant problomes are hard). Injectors are hard to test. ON or off is easy but you need a proper test bench to test flow. If they have all the gear it should be easy for them to test what is going on as far as the ECU thing it should still be on worm up mode. Are the saying you should get a replacment ECU?

[Iggle Piggle]

until we get the readings on what exactly failed there is nothing but speculation. I am going to hazard it failed on high CO2 readings but nothing to do until the results are in

[cerb ian]

ok chaps the co reading is 4.5% any ideas