F**king Emissions,F**king Mot\'s

[Bob Monkhouse]

Just got a ****ing fail on the ****ing emissions on Grants RX, ****ing mot *******s,and thats with a reasonable mot man. The results are a bit bad so any suggestions would be appreciated.Two seperate tests, one sat with the car idling for 20minutes(not good idea), one after illegal blast up \'t road and no difference. CO levels at 7.33-7.44%, CO2 levels 8.12%, HC\'s 2240ppm(double the legal limit),Lambda .884, O2 4.11%. Any suggestions how I can get them somewhere near? Does turning the injection duty down do owt to emissions, temporarily I mean. The  car in question has non sec.turbots, induction kit,Apexi ecu&commander, non cat exhaust etc(its being tested as a non cat car). Muchos appreciation for any help, Bob:mad:

[rx7veilside]

the non cat limit is 3.5 co u need to get a high flow cat or standard cat and also to turn down the settings on the apexi
no rx7 will go thru the mot without some form of cat and tweaking of the ecu
whoever tuned the car has not spent any time on the idle and cruise section of the map
there is no reason for co to be this high with tuning u shd run approx 4-5% max and add a cat
i have just added a high flow metallic cat from smb and will get an update on reading when my car is full mapped

[Bob Monkhouse]

Thanks for the reply. As to the ecu settings, its basically as supplied, I am aware that the apexi ecu is not a \'fit and forget\' unit, unfortunately I am rather new to rotarys and, though mechanical stuff I have no problem with, the ecu I cannot **** about with until I have someone who has experience with setting them up. Since the various bits were fitted the car was not particularly impressive, which is why I did the non sec. turbo conversion. The difference in the car was-and is- unbelieveable and now performs better than I ever expected,even just running .85psi.The problem with emissions has only just arisen because of the mot. However, the CO&HC levels are pretty bad even for a two stroke. Until I can get the parameters for the commander then I\'ll have to try the original ecu and see what happens.
        Unfortunately Grants RX is the only one in this area(Huddersfield-the largest town in europe supposedly) so we don\'t really have anyone to actually advise locally so its a case of trying to sort things out myself. Sometimes that just aint possible!! Any relevant figures for the ecu would be most helpful, thanks ,Bob.

[rx7veilside]

to be honest i would stick a high flow met cat on there and take it from there or u will allways have trouble with the levels..smb do a nice one and the contasct there is grant

[iaint]

One supposed pass method is to raise rpm to 7k, remove foot from throttle and hope that the readings drop to a safe point at some point as the engine slows down...  needs a very friendly MOT man though.

[rico2k_uk]

or get a VERY friendly one and use a clio round the courner

[chrisJDM]

speak to a guy on here called Sicknote he should be able to help u out, he owns a MOT Testing station

[Red and Single]

To put the record straight...sicknote knows how to tune the emissoions using the ECU in order to get it through. He doesn\'t do anything illegal !

[rico2k_uk]

lmao!!!!

[shaunwil]

One supposed pass method is to raise rpm to 7k, remove foot from throttle and hope that the readings drop to a safe point at some point as the engine slows down...  needs a very friendly MOT man though.

Is this to burn out the sensor and force it to give the desired reading

Shaun

[tezz12345]

i got de cat and mine was the same make sure ur air pump is working and ur be fine

[kev-yorks]

just turn down the fuel on the apexi to get it through then wind it back up once tested.
Kevin

[Bob Monkhouse]

Is sicknote out there? If you could give me some advice on the required settings for the ecu it would be greatly appreciated. I\'m thinking of buying a 2nd hand gas analyser, would it be a good idea?

[Timrxmotors]

Air pump has to be working,and the test done below 2650 rpm.No problem with emissions then.

[Hayward North]

just turn down the fuel on the apexi to get it through then wind it back up once tested.
Kevin

Thats what i did for mine.

Just goto settings on the hand held and turn down the pim settings for the desired rpm .