Gen 2 3SGTE Cutting power/eng check light

[senn]

This seems like a random issue, but I'm not sure how boost cut etc works on this motor. This particular setup is running top mount and a T-bleed at about 12psi, stock ECU, stock CT26 etc.

Every now and then, USUALLY when freeway driving and hitting boost in 4th-5th gear, the engine will cut power for a second and throw a check engine light. I have seen boost as high as 14psi on a cheap mechanical boost gauge (speco). After this has happened, anytime you hit ANY BOOST AT ALL, the engine cuts for a second and throws a check light, until you turn the ignition off and on again. Does this sound like boost cut, or am i possibly dealing with a more complex issue requiring me to get codes off the ECU etc etc?

Any help appreciated.

EDIT: Also wondering if this could be a knock/detonation thing due to the top mount probably getting quite warm doing freeway duties..

[senn]

Can someone let me know how to retrieve codes off these i'd appreciate it. Is there a diagnostic port?

[jonathan yee]

that is definetly boost cut.

to check error codes, bridge TE1 and E1 in the diag box and count the CEL flashes with ign on.

boost/fuel cut is around 12.5psi on the gen2 motor

[senn]

AHHHH thank you this makes me feel a bit better. I'll try find a code list online and see what it says.

[blakeg]

yep def boost cut. this engine set up seems to spike very easy with a mbc imo i got an ebc and that helped alot.. , if your not going crazy with the boost though you can install a FCD

[senn]

yup seems to spike really easy when you load the engine up in the higher gears, or even a little low in the rev range. It's got enough power (daily) So i may even delete the MBC just to make it a little happier.