SC 370z problem

phunk

This also sounds like a good assumption to me, steering towards my original guess that you should get the tune looked at.

when i tuned the uprev in my 370z, it was my first uprev tuning experience. it took me some time to get it down right. while i was still trying to get it correct, i had this happen to me and had to restart the car. it never happened under part throttle, but it would occasionally happen under boost and i would have to full over and restart the car. i then found that i had left a single clamp loose on one of my intercooler pipes and the pipe blew off... i think it was mostly this causing the problem more than my "work in progress" tuning but its hard to say since it all happened over the course of a week or so.

when i blew off that pipe, what was happening was, the car would run fine when not under boost because the MAFs are right next to the throttle bodys so a intake leak wasnt going to make it run goofy. But when i went into boost with a major pressure leak on one side of the turbo system... the side that did not leak was doing all the work trying to pressure the intake manifold, but the air was escaping on the other side... so i maxed out one sides MAF sensor and then the other side read less voltage than idle because air was actually leaving that throttle body to head to the leak. LOL... so I believe that the limp mode I was hitting was a result of reaching the end of one of the MAF sensors.

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