sweet thanks guys i got it to work! now my car runs like a stock eclipse, hopefully i can get some good gains by tuning the afr down. So correct me if im wrong, i should advance the timing untill i see knock. and i need to tune the fuel before the timing?

 

From what I know, and it is minimal, increasing timing until knock and then pulling a couple degrees is fine. Some will say "the only way to tune is via dyno and the torque graph" but, some of us just can't do that, so going by knock is the next best thing.

Also, changes in fuel can affect knock and changes in timing can affect fuel, so in a large modification such as swapping between 1 ECU for example, you need to tune both in little increments. Don't like try to go nutz on the fuel, then nutz on the timing, just take it slow. Find the spots you have knock, pull timing, get the AFR right, then once it's good, you can scoot the timing up and see if you encounter knock. 3 counts and I'd vote pull it back, cause the ECU will start doing it anyways.

Also, with the EVO rom, did you adjust anything knock related? I think you did but I can't remember right now. Anywho, there are 3 different sensitivities I believe that the evo has, and the lancer rom uses the middle one, so if you use the evo one, you'll see 10 counts of knock basically all over the place. 03lances had that sort of problem, and just adjusted the knock stuff to match his stock lancer rom, and then smooth sailing.

 

yea with the evo rom i didnt change any of the knock settings, i simply copied over fuel and ignition maps and used the 4g64 maf and injector scaling and latencies and i was seeing about 10 counts of knock all over the place like you said. but now with the eclipse rom im seeing that everything looks about right, im not going to order my wideband for another 2 weeks so i was thinking of just working the timing for now. can i get your email adress so i can send you some logs, im seeing about 6 counts of knock from about 3500-4500 rpm and then from 4750-5500 i see 0 knock. So i was going to retard the timing in the low end a little and advance it a little in the top end. but maybe i should just wait until i get the wideband?

 

Just as an FYI don't try to tune by knock with race fuel its a foolish endevor. You can easily reach MBT before any knock occurs and then your motor will blow up because of the pressure spikes.

Graphing the torque with high octane fuel shows when MBT occurs. Typically torque will fall with additional timing once MBT has been reached and you should back off timing a bit. With regular 91-93 octane this isn't an issue since knock happens WAY before MBT.

 

With the evo rom the low rpm multiplier is not the same as a base lancer or eclipse. Try setting the low rpm multiplier to the same setting as the mid rpm multiplier. 15 I think was the number?

 

im using the eclipse rom now so the knock counts seem to be accurate. also i dont bog below 2000 rpm, my fuel trims are right on, and the system too rich cel i was getting is gone(at least for now). Now im just trying to tune for power because it still feels underpowered to me. i just want a decently quick NA daily driver, then ill start to save for an evo or the 4g63 swap since i have everything in place for it. Anyways..

i usually use 89 octane, should i tune on this cheap gas, or switch to 91(best available here) and tune it, then stick to 91. even though im na?

 

I think you should compare the knock settings on the eclipse rom and the lancer rom and make sure they are the same. There is a couple multipliers that if they are "off" from what is accurate for your engine, you may not think you are getting knock....increase timing, still not see knock but have it actually be present... then boom. I always like a little confirmation, or double check, or whatever it's called, lol.

 

Hmmm so even though im using the eclipse rom, i still need the lancer knock settings? i have the lancer harness, and lancer ecu, but im using the eclipse rom, with eclipse knock sensor.. so should i still copy those settings over?

 

Well I'd guess that either you don't need to copy or they are already the same. What did you change to the eclipse rom for, bigger maps of something? Are the knock multipliers the same between lncer and eclipse?

 

I switched to the eclipse rom bcause there were some tables on the eclipse rom that weren't defined so I couldn't copy them to the lancer rom, like a few of the idle settings and the fuel tables had different values for the load. So if they are different should I use the lancer knock multipliers ? Or keep the eclipse ones since it's an eclipse engine v

 

I think you're right dude, stick with the eclipse knock settings. So it's running good now, still some knock in the lower mid range? I vote pull some timing there. I'm going to do the same on my stock lancer, just because of how bad it's knocking around 2.5-4k rpms. The whole "stock" maps just seem sloppy and blocky.

 

You should now be running just like a stock eclipse using the eclipse rom and engine. This should be your base map and tune from there I would think.

 

yea theres some knock in the lower range, ill mess with it more when i get from dallas, ill probably pull some timing in the lower range and then advance it a little in the top end. thats where i tend to lose power and the knock drops from 6 to 0.

 

okay guys the system too rich code came back again. Could there be a difference in using the eclipse rom on a lancer ecu vs just using the eclipse ecu. Why else would this light come on even if im using the same rom as an eclipse.

 

Are you logging? I dont understand why this would happen if your using a stock eclipse engine and rom.

In any case it should be pretty easy to fix just drop your latencies for your injectors settings. That code comes on when your LTFT is maxed and your STFT is also maxed and the ecu can no longer take enough fuel away to keep the engine running stoich afr.