Over boosting and hard cut out

[Turbojocky13]

Ok so I finished putting my motor back together and now there is a massive engine cut out when I give it any kind of hard gas (above half throttle) I can go into boost but I noticed with the accessport it's hitting 22.93 when it cuts. And it cuts hard. So it's deffinitly over boosting some how. Here is my mod list.


Forged eagle rods
Wiseco pistons
CDFP
TIH
CAI
TBE
Accessport stage 2
Stiffy Torque Damper
FTG ko422-582 upgradedTurbo
Balance shaft delete

Any help would be appreciated

[Scare Dem]

Were you logging when this happened?

Post some logs.

[btstarcher]

So, you have a turbo from a CX7? And upgraded it? I'd post a log, see what WGDC is doing. Also see if the WG actuator is moving.

[Turbojocky13]

Yea I will post some logs, but it was doing the exact same thing when it blew up about a month ago with 140,000 miles on it. It surged really hard and bent a rod, really don't want to do that again. I'll check the waste gate again, but yea I agree I kind messed up on the turbo when I bought it, it's a bigger inducer/exducers but the exhaust side is a tad smaller. Didn't do my research hard enough (like an idiot) and accidentally bought a 582 and not an 881 . Maybe waste gate solinoid?

[btstarcher]

Make sure the EBCS is connected properly. If it is, and you're still spiking, it wouldn't hurt to get another one and try it out, just to be safe.

[Vansquish]

Post some logs. It's all rather hard to diagnose without quantifiable data to look at.

[ANITIX87]

What tune are you running, what are your boost and load targets? We need more information.

TIS

[Turbojocky13]

I'll post some logs at lunch, but I would really rather not hit the cut again. It's fairly violent, I'm on Cobb stage 2 tune and I know for a fact that the boost targets are not 22.93 psi lol

[ANITIX87]

Originally Posted by Turbojocky13 I'll post some logs at lunch, but I would really rather not hit the cut again. It's fairly violent, I'm on Cobb stage 2 tune and I know for a fact that the boost targets are not 22.93 psi lol

Could be as simple as WGDC being high and the cold temps. Tuning in winter, especially boost-based, is tough.

Now that it's considerable warmer today, you may not hit the cut.

TIS

[tegxsi]

Check wastegate/EBCS connections, check for damaged or cracked hoses.
Stock or aftermarket EBCS?

[Turbojocky13]

Originally Posted by tegxsi Check wastegate/EBCS connections, check for damaged or cracked hoses. Stock or aftermarket EBCS?

Stock

Lol I'm in Florida it's always hot

[btstarcher]

If boost was that high though, I'm leaning toward hardware failure.

[Scare Dem]

It's 80 degrees out right now here in FL. If you're spiking to 22+ then hardware as mentioned above.

Did you see the spike on your AP?

[neganox]

Stock MAP sensor? Probably going higher than 22 and not being able to read it.

EBCS is probably cracked or hooked up wrong.

[Turbojocky13]

Found the issue, broken nipple on the solenoid. Can't believe I missed it, I looked at it like 10 times

[neganox]

Good find. Easy fix.

[Vansquish]

Also, if you're running an upgraded turbo, you probably can't (safely) run any OTS map.

[Turbojocky13]

True, thanks for the info!! ^ also just for some of the readers.... I guarantee this was broken and what caused my motor to blow up last month, thank god that this time I had forged internals. And for the love of God get a boost gauge so you can see this happening. If I would have had one my motor would not have blown. But I guess it's kinda a good thing because I'm built now mechanics life for me. #teamstaydirty

[Jadcock]

This is the shit that makes me want to get Stratifieds Guardian Angel asap. Check it out. You dial in a boost level and if it ever sees that level it allows the bpv to open and let go of the boost before anything booms.

[MSMS3]

+1 on having a boost gauge all the time. Shit can happen when you are not monitoring.