if some one has done a o2 map on the fic is there any chance they can post it up so we can have a look at it?

 

I will do my O2 map over the weekend. Will post it up here but I can also send you my FIC configuration file (which includes maps) so you can take a better look at it ;-)

 

thats great thanks a lot mate

 

Unfortunately I had to reschedule my tuning due to a lot of work that needs to be taken care of. I have new tuning time cheduled for next saturday.

But, if you want I can make you an O2 map shich should start you going (you can readjust it then by yourself or just use fuel map to adjust fueling where it needs to) if you can send me a table with basic O2 to AFR vaules.

WHat you need to do is following. If you have larger injectors instead of stock cut the large injectors to stock using a fuel map. For example, If you have 640cc injectors instead of 210 cc stock injectors enter a -62,5% value through the whole fuel map. After you have done that and the car starts normally start your engine. In the O2 map (set up on pressure and voltage) enter 0 and watch your AFR. After it gets stable at some value make a not of it. Then enter 0.1v through whole O2 map and make a note of AFR after it gets stable. Repeat this for all the vlaues until you reach 1.0v. Send me that map and I will make you an O2 map.

Final table should look something like this (these are not actual numbers):

1.0V = 16.0 AFR
0.9V = 15.5 AFR
0.8V = 15.0 AFR
0.7V = 14.5 AFR
0.6V = 14.0 AFR
0.5V = 13.5 AFR
0.4V = 13.0 AFR
0.3V = 12.5 AFR
0.2V = 12.0 AFR
0.1V = 11.5 AFR
0.5V = 11.0 AFR

 

Just a note, you can start your base map for larger injectors by right-clicking on the fuel map and selecting Create Base Map. You will enter the stock injectors cc (245cc i think), and the current injectors cc, and it will make a nice base map.

 

^^Yep that is true. We went via hard track :-D. I like to do things manually.

 

yeah thanks a lot for that. ill get it done asap for ya. its going in the garage early march for its first service and fuel pressure regulator fitting. while its there we can have a go at doing the map. from what ive been told my o2 sensor is a bit nackered so im ordering a new one then i believe it needs to be wired up. ill be intouch as soon as i have those results for you. thanks again.

 

Well just to give you some update. I still did not do my O2 map main reason being that my O2 sensor went dead on me. So, I was driving around without O2 sensor and with just a fuel map done and it seemed to be fine that way. Few days ago I hav efinnaly managed to get a new O2 sensor and put it in. Whole setup has been connected to the new O2 sensor. Until today everything was fine and today car started acting wierd. I can start the car without the problem, I put it in first and start the run no problem then in second and the car starts "coughing" revs are at 2000 RPM but it just coughs and it cannot get any power at all until I press down the pedal and give it a bit more gas after a second or two it backfires (I could swear that it dentonated in exhaust manifold) and after that it goes fine. That is until I get my foot of the gas and allow it to go into closed loop again. Well it seems that our ECU does its fight quite well. Yo, I am in for an O2 mapping this Saturday.

I took a look at my settings in FIC and everything seems fine there. Shame is that I cannot monitor short and long term fuel trims as the pre 2001 euro spec cars do not confirm fully to OBDII standards

 

here's a obd-ii snapshot of my car at 6200RPM, in 3rd gear driving on the highway. I have a CAI, Headers, Exhaust and a few other modifications.



What this suggests is that the ECU is simply not capable of compensating for a turbo. It can't read any higher then 120 grams per second. It could also explain why our cars drop off at 6000rpm on the dyno.

Hope this helps.

 

^ Hmm what?

No shit the ECU can't compensate for a turbo, that's why he's running a FIC. The FIC can clamp the MAF voltage the ECU sees also, the manual recommends to clamp it at 10% above the maximum value seen N/A, which was about 4.4V in my case (=> clamp voltage 4.8V).

And as he mentioned this is an O2-related issue (closed-loop), not MAF related..

And by the way, how do you know the ECU uses ONLY the load% value in its maps (and not the actual MAF voltage also)?