I'm getting very strange readings from my evo logs after performing injectors swap, where the ECU lookup seems to be ONLY in the low octane maps. I have confirmed this by the evo scan reads where the timing cells show no values resembling it except in the low octane portions. While most would say its pulling timing due to knock conditions, scans of my log show no ks whatsoever (its actually running quite rich).

I'm at a lost why the ecu is doing a lo octane lookup at this point and was wondering if there was something else i was overlooking in the between high and low map lookups. Any clues about this?

And yes, I have modified the injector scaling as well as the latency voltages so that stft and ltft are within 1% of each other already if that helps.

 

What is the octane value in your datalogs? This controls the interpolation between low and high octane, but sensor faults will also influence. The code for the latter is not disassembled yet.

 

Any other values off, like Baro or coolant temp

 

Octane value is 100% rock steady and baro and coolant temps are also normal. I was suspecting my maps going to DTC lookup, but those are well off too. I'm tempted to just pull the battery and reset the ECU altogether to resolve this. I have enclosed a snapshot of my logs (without timing unfortunatley).

 

I don't know but my FuelTrims High, Low, and Middle are 100, 100, and 82.031 respectively and yours are 100, 101, and 100 respectfully. I dont know if IXs are supposed to be that

 

I checked some of my old logs w/ stock injectors and they read like:

88.28125 (short), 92.1875 (mid), and 100 (long) respectively

i could decrease the stft further, but would this affect the hi/lo map interpolation?

 

Is that battery volt correct? What scaling have you used, what injectors and what did you change your compensation to?

Your IDC seem abnormaly high if you went to larger injectors.

 

Denso 720cc....636 scaling w/ compensation to:

6.120, 2.184, 1.512, 1.032, 0.696, 0.456, 0.264 from 4.69v->18.68v respectively.

I thought my IDC was pretty nominal, considering that i was going up to 120% value on the stock injectors =(

 

Welp, just for sanity sake I went by the local Autozone and hooked up their OBDII scanner. Got the usual (for my car) emisssions control (446, 441, 443, 420, etc.) dtc's, but other than that, it checks out fine, so no rich condition trouble codes or the like.

I also did a flat test map and sure enough the timing changed accordingly. Back to more testing i guess. =/