Ya even though I dont have an evo from what I have read the stock maps run extremely rich and then they run overly aggressive timing. Seems like everyone starts by retarding the timing some then leaning it out a little. Dont quote me there though

 

Yea, just from looking at the base maps its all jacked up. For example-once you get to 12-140 load it starts dumping fuel...9s and low 10s. During spool up its at like 14s and scattered... its booty i tell ya booty.

 

Ok so I have discovered that where I teed into my fpr vaccuum line the hose is split and if I move it while runing I can hear a vaccuum leak. So my question is would this cause my leaning out issues? My car does not have a rising rate fpr like the evos do so my guess would be no since the fuel pressure in my car is 38psi at idle and remove the vacuum line the pressure raises to 47psi so wouldnt if anything make it rich??

 

Your FPR doesn't raise fuel pressure with boost pressure? Are you sure?

If so, that's your issue. It would be just like running no line to the FPR at all. The fuel pressure needs to rise 1:1 with boost pressure to keep a constant fuel pressure to the rail. Else, you will run leaner and leaner as the boost increases.

 

Yes my car was not boosted stock so there was no need for a RR fpr, its this reason we have to run them very rich up top with ecuflash. Plenty of ppl with the base lancers run with just a walbro, 440cc injectors with no fuel delivery issues but idk maybe I should just get one anyways

 

Ok guys I have discovered something wierd going on here

So here is my high octane fuel map


And here is a WOT in 3rd, I highlighted the rpm, ecuload, wideband, and afrmap columns and highlighted the closest rpms to my map ie, 2500 3000 3500 etc.


Example here 2500rpm, 126 load afrmap says 11.83, look up in my actual fuel map and it shows 13.2 at 2500 and 130. The closets to that is in the 150 load column at 11.9. WTF?

Now at 3000 and 136 load its at 10.94 but in my fuel map its 10.6, once again my closest to that is at 150 load at 10.8. Am I missing something?? Also right at 3000 you can see the afrmap flatline at 10.01 is this normal?? no significant knock and 100 octane flag throughout

I also have a log of just driving with a couple of light acceleration spots in the log, I have been looking at every spot in the log where the afrmap drops below 14.7 and whats wierd is no matter what load I am at, it looks like my afr map reflects closes to the 150 load column which is also my max load column as you can see. this leads me to believe that my fuel maps are registering at a load higher than my max of 150. Not sure how I can confirm this though since I cannot log 2byte load with my ecu. Any ideas how to check this? Maybe just raise my highest load column to like 200 or something?

 

That seems to be a legit problem. Dont you have a Evo 8 ecu?

You could just rescale your map for higher loads, but your maps are small so you wouldnt be able to see lower loads.

 

I have had 2 lol the first one ran my car but not right so I sold it, the second one did not even run my car it was fried and the seller is a scammer so I am screwed and stuck using my stock ecu until I get some more money to buy another evo ecu. I would be able to confirm this quickly if I did have the evo ecu.

 

the fuel map does not equal afr. It looks like its afr, but its not supposed to be AFR.

 

You should just leave it as is until you get a Ecu... theres always people selling some here.

 

WTF??? What do you mean? Thats exactly what the fuel map is, it is used to richen up or lean out the fuel mixture correct? Thats the afr "air fuel ratio" unless I have been grossly misinformed. Do you mean the fuel map does not reflect actual afrs? If so I know and understand this but the afrmap is supposed to reflect the fuel map exactly as whats shown in ecuflash at any given load/rpm cell which in my case it does not. Then I have my uego being loggged for my actual afrs.

 

Well the only problem with that is I am not good at leaving well enough alone if I have a problem somewhere I have to fix it lol otherwise I will do just what I did today at work, went over and over in my head of what I can try to change to get a different result. Plus idk when I will have the money for another ecu, it could be next week or 3 months, I dont use any of my main income to fund my projects its all side work I use so no side work no progress

 

Are you 100% certain that your injector scaling is spot on? What wide band are you using and have you calibrated it for your altitude?

 

Tru thats how i am.

Back on point, like Appualdd said... maybe your scalings are off.

whoops my bad...

 

Well I know my fuel trims are within +/- 1% I spent a couple hours sunday night getting them just right before proceeding with this issue. I was just looking at calibration of the wideband its an aem uego I could not find a definate answer on how to calibate it though. I live at sea level maybe 10 ft above? I read through a thread in the base lancer forums regarding someone having the exact same issue as me and seems there were able to resolve it by increasing there maf size a little and adjusting the scalings. However they were using the stock maf which is only 215 g/s where as I have the evo maf and its 357 g/s. They were concerned of upping the maf size too much and hitting too high of load values that they could not properly tune for, well I am way above that with my sevo maf since I am hitting 160 for load. I am debating dropping the maf size to around 300 and see if the problem gets worse or stays the same or???

Logs alrighty posted bro lol see #51