99 to 02 Operating system swap

[Matt0matic]

12870

Just got back from a drive after updating my 99 Camaro with the 02 operating system. I was really worried before I started but once I got into the transferring of information from the current tune to the 02 operating system it seemed simpler than I expected. The car drove like normal and I couldn't tell any difference beside the computer relearning a few things- mostly idle. But I'm excited to finally have my feet wet in EFILive! Tune is posted above if I uploaded it correctly, feel free to comment and advice on what should be done next.

[joecar]

Hi Matt,

cool, good job;

what are your mods...?

[Matt0matic]

12871
Hooker Long tubes
LPE GT 2-3 Cam 207/220 .571/.578 w 1.7 rocker 118.5 CL
Ford red top 30 lb injectors + walbro 255 fuel pump

Got it tuned when I first got the car and only put down 305hp.

[Matt0matic]

What PIDs should I get some logs of before I start tuning?

[joecar]

(SAE. prefix if available, otherwise GM. prefix):

EQIVRATIO
MAF
MAP
TP
RPM
LONGFT1/2
IBPW1/2
IAT
ECT
SPARKADV
KR
DYNAIR
DYNCYLAIR
WO2LAM1 (if using wideband serial comms)

Keep pid channel count no greater than 24 (see bottom of PIDs tab in scantool).

[BLK02WS6]

Do you have a wideband? Your VE table needs work - it is hacked... Have you read the tutorial on autoVE tuning? Good place to start...

[Matt0matic]

Nope, I've been looking at getting a wideband, and have been offered to borrow one locally. And I have read the tutorial, but that doesn't mean I understand everything yet. More reading to do and I'm going to get some logs going on the car.

[Matt0matic]

Do you have a wideband? Your VE table needs work - it is hacked... Have you read the tutorial on autoVE tuning? Good place to start...

What do you see on the VE table that leads you to think it's subpar? Trying to learn not doubt.

[joecar]

VE table doesn't show the traditional dyno torque curve shape (rises to a peak and then drops down some)...

it looks more like what boost would require.

[Matt0matic]

1287812879

Logs from today. Only thing I can complain with the car is when cruising and when taking the car out of gear (manual) the RPMs will jump to 1300-1700 until the car comes to a full and complete stop then it returns to idle at 750ish.

[BLK02WS6]

What do you see on the VE table that leads you to think it's subpar? Trying to learn not doubt.

The 90-105 kpa from 2000 rpm and up - that shelf is no way what the engine would want for fueling. When you tune the VE properly using a wideband, it will not have large jumps like that and won't be a level shelf either. Like Joe said, it should smoothly rise up and drop back down... Here is an example...


http://i190.photobucket.com/albums/z135/blk02ws6/sampleVE.jpg

[BLK02WS6]

1287812879

Logs from today. Only thing I can complain with the car is when cruising and when taking the car out of gear (manual) the RPMs will jump to 1300-1700 until the car comes to a full and complete stop then it returns to idle at 750ish.

You need to work on the throttle cracker table to change that...

[AllOutPerformance]

Your car has a 12 bolt aswell doesnt it?

[AllOutPerformance]

also set all the 02 switch point to 450.

[AllOutPerformance]

also i had a car that i auto ve not long ago that looked very similar to this,wanting more fuel in places it shouldnt,didnt make very good power ect,wouldnt rev very well,turned out the cam was off a tooth,idled decent ran decent but wierd.you might take alook at the cam timing.

[joecar]

Cam timing off... good to know, thanks for the info AOP :cheers:

[Matt0matic]

You need to work on the throttle cracker table to change that... Yep, after some searching a little changing in the tune I think I have that handled.

[Matt0matic]

Same car w/ the 12 bolt. Not worried about the power. Just tying to learn the software- when the new engine goes in I'll figure out what wasn't happy in this current set up, cam, timing, springs, something.

[joecar]

Post your newly edited tune... :)

[AllOutPerformance]

You went to a later os good choice.no more backup be and more idle control along with lots of custom os.didn't it have a cylinder down? I can't remember.

[AllOutPerformance]

You can always text or call me buddy if u need help

[Matt0matic]

I will be in touch as the new motor gets closer to being finished
12885
Most current out of the car.