phocup

And scared the crap out of myself ..

Day started pretty well ..

Felt like a BOSS because I got the paid version of MS with VEAL.
I downloaded Braineack's tune for 01-05 and copied the ignition table over .. then knocked everything down 2 deg 'for safety'.
Was finally able to get the trigger offset right to set my base ignition timing spot on at 10 deg and remembered to switched back to use table after that.

On to VEAL!

First run was around 5 min mostly at the lower rev zone slowly working the throttle through the rev range. It worked great ( IMO ). VEAL changed a bunch of settings. Then I stopped to make a backup of the tune.
Second run was much shorter .. ended abruptly because the throttle suddenly got 'stuck' around 1400 rpm, AFR jumped from 13 to around 17-19 and I think I heard knock .. so I shut it down quick.

Here's the video .. LMK if you think it was knocking toward the end ( or anywhere in that video ).


Also some pretty colorful pictures ..






What do you guys think caused that sputtering 'knock' sound and the sudden spike in AFR ?

Erat

iTrader: (5)

That aint knock. IDK what it's doing.

Tune your idle separate. Do not let VEAL tune idle cells, lock them out.
Check for vacuum leaks too.

pdexta

iTrader: (17)

When you see every cell that VEAL hit trying to add fuel you really should make a change to your full fuel map before continuing. You can bump up your Req_Fuel setting a little bit to help get the fuel map closer to it's target. You don't want to drive around lean letting VEAL add fuel to the entire map over time. If anything you'd rather be a touch rich and drive around letting it pull fuel.

phocup

Okay, thanks guys. Locked the idle cells and bumped a gas up across the board under 100KPA. Then did a 3rd VEAL session and that weird sound didn't come back so finger crossed it went away whatever it was.

Tomorrow we'll do the driving portion.

Akina_Downhill

iTrader: (1)

That weird sound usually occurs, when you try to idle on an afr that's leaner than what your injectors can handle.
If you look in the original video you can see afr jumping on 16+, since you have some jumps in your idle cells.
Tune your idle first, try to tune for lowest KPa readings(max vacuum), then use VEAL to work the rest of the map.

phocup

Actually just noticed that the AFR on my AEM XSeries Wideband doesn't match the value in TS. TS read 14.xwhen guage shows 12.x .. hmm ...

Reading the WB documentation here ( http://www.aemelectronics.com/files/...ns/30-0300.pdf ), it says:

The supplied UEGO sensor is factory calibrated via a trim resistor, integral to the sensor connector, and requires no further calibration. The ability to perform a free air calibration is provided for users that wish to do so. A free air calibration can be used as a sensor ages, however, new sensors should use the resistor calibration for best accuracy.

So this being a new guage I shouldn't calibrate ..

Hmm .. maybe no driving tomorrow yet either ..

Akina_Downhill

iTrader: (1)

Have you chosen Aem X-series as your wideband controller under Tools->afr calibration?
You might need to use custom calibration as TS calibration doesn't match the actual one anyway(an error of 0.1-0.5 tho)
Where is the controller grounded?

Art

.

phocup

<!--- What a noob.

I didn't have the correct WB selected. Went to calibrate AFR and selected the correct value. Its all matchy matchy now!
My fault for assuming the base tune Reverant installed configured that part for me since he knew I was using that WB.