When tuning the air/fuel mixture do you just increase the cell that needs to be richer and decrease it for leaner, if so in how big of a incrament? Also I was reading that they also change the injector multiplier to tune it, whats that about?


When tuning the idle for 14.7 can you just change the cell with the car running through the emulator or do you have to kill the engine for a small change like a cell. So if it says like 38 in my cell and my a/f is 13.8 and needs to be 14.7 do I try like 45 or something?

 

Always work with teh closed-loop UEGO feedback disabled and get the idle right first. When you're doing idle, highlight the cells from 1000rpm and 299mbar all the way to the top-left corner. From that point on, I work in load columns first and then check a few islands on the rpm rows in each column. That's only for street tuning. If you're on a loading dyno, it's easier to go up in RPM for each load column first rather than up across the load columns first.

Hit the increment UP/DOWN arrows once or twice (CTRL+I for increase, CTRL+D for decrease by 1 increment) and wait for the AFR to change. Once it settles, make another change of 1 to 3 increments. As you get closer to the target AFR, make your changes smaller (only by increments of 1) until you hit your target AFR.

You can change the percent change of each increment by going into the settings and altering the percentage point per increment value. Personally, I like the default 1% and .25 deg per increment values.

Set the injector multiplier when you first create the start map and don't change it from that point on. It'll only confuse you later on if you keep messing with it here and there from time to time. Keep it simple and use just the fuel base map to change the injector pulsewidths after you initially set the inj., fuel pressure, and engine size correction factors.

When you use the emulator, you can leave the engine running. It's fast enough that it won't disrupt the ECU from reading the ROM while it writes.

 

Ok also im using a wideband aem uego
http://www.hondata.net/forum/v...rt=15

I enter the conversion and save the rom, then I exit hondata start up again and load my rom. I check the conversion and its how I set it, I then try again and exit the program and reboot and recheck. The conversion stats that I entered is now gone and shows the stock custom conversion.
Is my conversion still in there, cause my gauge is not matching my hondata numbers. I got my gauge wire going straight to my ecu with the one going to the engine bay disconnected. Ill try and emulate and upload the conversion during real time.

 

The lambda-voltage conversion tables are not saved in the .bin's. They're a part of the general software settings.

I can tell you that if you switch between calibrations (ie: from Custom to Motec PLM and then back to Custom), it will not retain the conversion you had previously entered for the Custom setting.

 

Do you have to upload the current map everytime a change is entered or is it automatically changed when you increase a cell. My a/f gauge is bouncing around more then what would seem normal, I dont know if its reading right since it cut the wires to get through the firewall. How much oscillation should there be, should it be bouncing around 14.6 to like 14.8 or locked on 14.7?

Anyways im taking the car to tune on Monday and comapring my a/f gauge with theirs.

Also off topic>I set my idle when I installed my engine with the throttle stop screw, since it was already tampered with when I sent my throttle body to bore. Is this fine?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboTeG4 &raquo;</TD></TR><TR><TD CLASS="quote">Do you have to upload the current map everytime a change is entered or is it automatically changed when you increase a cell?</TD></TR></TABLE>
No. The changes take effect immediately. It's also the reason why you shouldn't make drastic changes all at once (like typing in 30 for the idle fuel cells when it was originally 78). The engine will stumble. Keep your changes incremental and small.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboTeG4 &raquo;</TD></TR><TR><TD CLASS="quote">My a/f gauge is bouncing around more then what would seem normal, I dont know if its reading right since it cut the wires to get through the firewall. How much oscillation should there be, should it be bouncing around 14.6 to like 14.8 or locked on 14.7?</TD></TR></TABLE>
That variation is normal due to cylinder-to-cylinder differences and cycle-by-cycle variations.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboTeG4 &raquo;</TD></TR><TR><TD CLASS="quote">Also off topic&gt;I set my idle when I installed my engine with the throttle stop screw, since it was already tampered with when I sent my throttle body to bore. Is this fine?</TD></TR></TABLE>
As long as the IACV can work within its proper operating range (ie: not having to decrease the duty cycle too far to one side of the range to hold a simple idle) and the TPS voltage can be calibrated properly to specification, then it'll be just fine.

 

I took my car to the dyno and got my wot tuned but my partial throttle is too rich, so me and my pops went around town tuning it on the emulator. I just adjusted the 4 cells at a time to read in the 14.7 regions. My columns up to 5 look like this


16 52 96 152 231
22 59 98 156 237
25 65 104 159 243
30 67 95 150 249
32 68 100 153 255
32 62 100 174 266
28 59 96 162 248
34 69 106 153 236
36 61 88 143 222
28 63 100 154 232
26 62 100 146 225
28 58 87 132 212
36 76 106 156 240


Is that normal, I only adjusted nothing more, I got 14.7 for most, im showing this untill 3175 rpms so you get the idea. Strange though cause I adjusted idle to 14.7 and when I got home it was fluctuating between 15 and 16.


Modified by TurboTeG4 at 6:38 AM 8/5/2005


Modified by TurboTeG4 at 5:53 AM 8/6/2005

 

I notice at WOT my a/f gauge goes to 13.4 for a split second then goes back to the 11's looks like a lean spot in one of the cells


Modified by TurboTeG4 at 9:08 AM 8/10/2005