12psi boost

[YokiMazoku]

Okay maybe someone can help me out or at least point me in the right direction. I have a MS3 2007 that will only hit about 12psi of boost. I thought originally i damaged my TIP but it turns out that is not the case. I did a boost leak awhile back and didn't find anything im gonna try again but i dont think its that. Here is a log i took. Any help would be much appreciated. This started right after i updated to the latest OTS map.

[abiezerf]

Does it happen with only one map? or all of them?

Edit: Dude, there is no RPM column on your log. Makes it hard to determine stuffs.

[SofaKingAwesome]

yikes. Practice datalogging and do a MAF Cal.
HOW TO CALIBRATE YOUR MAF! With An Example

select default logging preferences or whatever it says on your AP and it should set you up decent.

[YokiMazoku]

I was trying different maps sorry i will do another log later today. I haven't calibrated the MAF on the new map yet bc of the boost problems.

[rfinkle2]

You have either a bad boost control solenoid, or a wastegate actuator problem.

If you look @ the logs, your car is running 0 wgdc for some reason.

Edit: Actually I cannot tell from your logs that the above is your problem for sure. (I looked @ it too quickly the first time)

Most of your log is not WOT operation.

Can you catch a log from 2500 rpm - redline?

As Sofaking said, reset the default logging parameters on your AP when you get a chance, and hit us with that log.

[karl-hungus]

yellow no shims.

[themytb]

maf=first

[YokiMazoku]

Ok i took another log 3rd thru 4th. I did turn on my logging options for a better log. If i need to add something else let me know ill try again thanks guys! ops wrong log ap didnt catch one of my log but this one should work.

[SofaKingAwesome]

ya gonna post the damn thing?

[Vansquish]

Originally Posted by YokiMazoku Ok i took another log 3rd thru 4th. I did turn on my logging options for a better log. If i need to add something else let me know ill try again thanks guys!

WTF is that?

Your log shows NOTHING useful.

If you're doing a MAF calibration log, you should be using low throttle, basically staying out of boost and running from about 3k RPM to redline.

If you're doing a WOT log, you actually have to log from about 3k RPM to redline while you've got the pedal to the floor.

The log you gave us shows nothing of the sort. The only thing I can say conclusively is that your MAF is not calibrated well, as you're definitely not within (abs)2 of 0 for your LTFTs.

[YokiMazoku]

changed sorry posted wrong log. The previous log i started then i saw a cop and had to try somewhere else sorry again.

[Vansquish]

OK...so here's my own experience with the latest (Boost-tuning) OTS maps from Cobb.

I should preface this by saying that my car is a 2006 MS6.

Because they were the newest thing from Cobb, I downloaded and installed a Boost-Tuning OTS map when Cobb made them available. I noticed that I was hitting lower boost than stock levels and that the car felt significantly down on power relative to my previous Load-Tuning map.

I fiddled with everything from load targets to boost targets to WGDC to Ignition and even dabbled a little in VVT. No matter what I did (granted, I was making small adjustments), I couldn't get back to the 17.5-18psi of boost that I'd been running on my previous Load-map, and the car was noticeably more sluggish (VD said I'd lost about 30hp and 40tq on the Boost map).

On the Boost map, I was only hitting about 13.5-14.5psi, and was unable to do any better despite the map's target of 17.5psi.

I switched back, revised my most recent Load map with some things that I'd learned, and the car is back to its old self...but even faster (tweaked a few things).

[YokiMazoku]

I still have my old map that worked great i will try switching back to that later today and give it a try.

[abiezerf]

Looks like you can't pass 14 psi. That is the wastegate spring pressure. Might be your solenoid or your wastegate that is messed up.

[silvapain]

Your WGDC is very low

[Lex]

Are you on the stock turbo?

Your MAF is reading very high for a stock turbo and 13psi. The high reading of the MAF means your calculated load is high - so the ECU is running all the boost it needs to hit those load targets.

I am suspecting a leak between the turbo outlet and the motor. The turbo is pulling the air through the MAF causing it to read high but the boost pressure is lost before it gets to the manifold.

If you are on a larger turbo then indeed you might be flowing that much air in which case you have to target higher load values to increase boost.

[YokiMazoku]

Thanks everyone for all the help! I did another boost leak test it seems my TIP is messed up like i originally thought. Looks like it has just gotten worse. Managed to get a hold of Mark at street unit everyone seems to love this guy now i know why he hooked me up after the huge ordeal i had a few weeks back. I should have it wednesday or thursday this week. Thanks Mark!

[YokiMazoku]

So i ran another boot leak test since lex suspected i had another leak after the TIP. Which he was correct. However im still stuck at 12psi. So i finally got a chance to load up my old map "load base tuning" and now 16-17 psi boost. WTF is going on why is that? I tried different new boost base tuning maps and they all get me stuck at about 12-13 psi.

[Chimmike]

Leak after the TIP? dude, the TIP doesn't EVER see boost.

it sounds like you're not checking the box for boost based tuning or something

[YokiMazoku]

box is checked. Thats not it.

[abiezerf]

Odd, I'm having a similar problem. Can you post one of your load based maps so I can try and see what happens?

Sent from my HTC Evo 3D using Tapatalk

[YokiMazoku]

Ok so i did a quick pull in fourth gear and noticed some kr so i got off of it can anyone shine some light on this? The maps i have are the 1.08 but they are modified some. Ill post one later. This i the new log i just did.

[abiezerf]

Please post the map when you can, I'd like to try it. Thanks!

[nighthawk358]

Originally Posted by chimmike Leak after the TIP? dude, the TIP doesn't EVER see boost. it sounds like you're not checking the box for boost based tuning or something

what box do you have to check?

[SofaKingAwesome]

Originally Posted by nighthawk358 what box do you have to check?

READ

http://www.cobbtuning.com/v/vspfiles...MAZDASPEED.pdf

[timjs]

When I first flashed to one of Cobb's stage 1 OTS maps..I had the 12 psi/ 0% WGDC issue too. Reflashed to stock, and flashed it AGAIN to the stage 1 map and it was fine.

I have NOOO idea what changed from the first try to the second.

[SofaKingAwesome]

You can try the "Open map in ATR, save in ATR, push to AP, and reflash car trick"
Can't hurt.

[BrianB6]

^^^ totally agree, also double check AP firmware and ATR version

have you tried to contact anyone at Cobb? could be some kind of known issue???