Log Check - Boost Leak?

[steve30]

I resolved the AFR/O2 sensor issue but the car still spools slow.

Here's a log from 3rd to 4th gear: https://datazap.me/u/steve30/3-4gear?log=0&data=4-5-6-7-8-9-10-11-16-24-25

I see some timing corrections in 4th and the boost bouncing up and down.

 

[tjw99]

Not a tuner or anything, just learning how to look at logs. But one thing I noticed is it looks like your throttle is closing by half suddenly for a second when you reach the boost target in each gear? I wonder if maybe the traction control is doing that if it wasnt fully turned off and is cutting power when you are reaching peak torque at lower speed for that gear? Only other thing I've read so far about throttle closing is if you're overboosting which you aren't going over the target so I wouldn't think that is the case.

 

[carabuser]

I've got no idea what's causing that strange behaviour in the wastegates. Boost seems to climb as they open up.

Spool is slow, what turbo is it?

The tune looks odd though. Almost like there is no PID acting at all, just a wonky base table maybe.

 

[steve30]

Sorry guys, been sick for the last few days. I did have a chance to share the log with my tuner and I was sent a new flash to dampen the oscillation which it has. @carabuser its a GTX3584RS twin scroll 1.06 a/r. Prior to the single bank conversion the car was spooling great, even my tuner was surprised.

updated 4th gear log with latest tune:

datazap.me | Steve30 | 4th gear

datazap.me

 

[carabuser]

Still looks miles off. Only making 12psi because the wastegates control is non existent.

 

[steve30]

My tuner wanted a log based on this latest tune which mainly removed the oscillation. I'm waiting for a revision which he said would adjust wgdc to help with spool. I'll update with a log when that revision arrives.

Could this be a hardware issue? I've gone over the engine looking for any leaks etc.. Resolved the major issue I had prior to this with the loose valve cover bolts. Thanks again for the help.

 

[carabuser]

My tuner wanted a log based on this latest tune which mainly removed the oscillation. I'm waiting for a revision which he said would adjust wgdc to help with spool. I'll update with a log when that revision arrives.

Could this be a hardware issue? I've gone over the engine looking for any leaks etc.. Resolved the major issue I had prior to this with the loose valve cover bolts. Thanks again for the help.

Cuurently the wategate control in the tune is set up wrong. That needs fixing before you'll know if there's a leak.

 

[steve30]

Cuurently the wategate control in the tune is set up wrong. That needs fixing before you'll know if there's a leak.

Thanks, I will get that issue resolved and report back with any changes along with a fresh log. Appreciate the time and support.

 

[steve30]

Issue has been resolved. I had the MAC solenoid connected to bank 2. Stupid mistake but glad its resolved as the car is now behaving properly. Thanks again for your insight & help.

I couldn't simply switch the solenoid to test each bank because it had the GFB boost controller setup which used a different connector to engine harness. Luckily I had my previous solenoid from the motiv boost box setup. My tuner provided me with a flash that had wgdc set to 100% at idle. I connected both solenoids and identified bank 1 by hearing the solenoid click.