but? its the misfire procedure , same thing, they all say not to run ac and not to use the brakes, you ve seen it or are you trying to do soemthing else? it may not work if you use the brake or ac during ? or i am wrong? just trying to help, on his foxwell aston passed it in one acceleration and going down to 20mph...try it without using the brakes and ac but super early somewhere discreet, watch out well, its scary....
i m about to change the battery, i plan to do it here on a road here at 5 am, i will be fine as its very low traffic...

you tried changing o2 sensors or maf sensors, for the engine light? you don't have a foxwell 530? to check? or the air box seals to change too in case? the air pipes are well down and tight? not with a gap? where the maf sensors are? did he checked there? it didnt happenned after a service?

 

This is for emissions monitoring setting. It's not for misfire learning.

 

Brightoncorgi, i hope you got it sort it out soon. I just clean the motor today and the wheels. Thanks J doubleU
in 2017 the best tecnician of Andy Palmer came 3 days in valencia to update many parts due to the idle but it was more to please me and go further more, they updated the 2 trottle body, oxygene sensor, maf sensor, spark plugs and check the engine compression at 34000kms. I said so cause indeed at the end the car was acting about the same, when you start a v12 engine, it sounds like this, first it goes up and down and up again and down, but mine was going up and down 3 or 4 times you thought somebody was pushing the accelerator but it only happenned at idle the car was running and still run like new. and some cars does it, they ended up to tell me go to the dealership we have another one doing like this too. but most v12 go up and down with sounds only twice, ...then it stabilize. sorry for my english, 25 years i am not in the us...
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Very cool, what did you use to clean up the engine bay?

 

I use a super high pressure water everywhere ! lol i m joking...

i used a damp wafle fabric with water and soap, and i cleaned by hand the metal and plastic parts, and then i spray lightly some rubber autoglym and clean with a brush, it was not wet at all and i feel more secure doing this. then i cleaned the excess with a wafle cloth.
it was a pleasure cause prior to this i well cleaned all around the hood,aroung the struts aera at the bottom around winshield, al lthese places we rarely clean you know, so its super shiny there, there was two cavities rounded at each corner of windshield i cleaned and repainted in black as it was starting to rust. maybe 2 cm square.

i ordered 2 products for the AC one to refill or retopped it as its only 170 gr, will you just toppped it a bit or do nothing?

and another product to spray in the conducts or at the entrance in the hood section, i dont know what to do, if i should spray it inside the vents inside and let it overnight,or if i shoudl turn the ac on and spray some inside the hood entrance? anyway...any help if you have done this before....

and i am wandering when the oil filler cap inside the engine bay must be changed, is it at each service? or not at all.

 

do you still have this kit to open the valves connected or not? its not this causing your problem?

I just watched a YouTube video about yellow check engine light.
1/ O2 sensors
2/ seal gas cover
3 / maf sensors
Etc.....have you looked at these before the ECU?