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-   -   Power loss WOT (http://www.mazdaspeedforums.org/forum/f544/power-loss-wot-202351/)

Jonb82 05-28-2016 05:08 AM

Power loss WOT
 
3 Attachment(s)
Hi all,

I installed a TMIC about two weeks ago. I received the correct tune from Stratified and everything was running great after a small hiccup. Then I started to get power loss in WOT in first only and now it is in every gear. From reading it might be the cam sensor, boost leak, but I do not think I am showing signs of that in my fuel trims. HPFP looks good. AFR looks good. KR gets to the mid 1's at a couple points. In the logs I didnt take it past 5k rpm I believe due to the cars performance. I am using the same gas that I have been using Shell 93. On my next day off I will be rechecking all connections. I included the normal logs including throttle position and desired due to a code that I got and fixed after installing top mount. It was throttle body stuck. The car was showing way high AFR's at idle and idling very rough. I took the IC pipe off the throttle body and inspected and found nothing in there. I reset the ECU and like I said before, everything was fine after that. Spark plugs should not be the issue either for they are about 5k old and the ones I replaced looked good. Car runs fine while cruising. Also in the logs, I started in first (didnt launch it), then shifted to second. Just looking for some feedback to make the repair day easier. The wife is already going to be pegging me for not spending time with her when we are both off. Thank you in advance

3deepsadzam 05-28-2016 05:33 AM

Have you Pressure tested for boost leaks

g00s3y 05-28-2016 07:10 AM

You definitely have a leak, as soon as you start accelerating, you start going very lean, 16+ AFR's.

Other than that, can't really tell all that much from the logs. You aren't going WOT from 3k-6k, it seems you aren't fully pushing the pedal all the way, are letting up some, then getting back on it very quickly, or your TPS may be bad, wiring to it might be bad.

You also seem to have SWAS enabled, and looks like there might be some tire spin, and thats the reason you're AFR's were dipping down into the 8's on one of the logs.

Where in Ft Myers are you located?

Jonb82 05-28-2016 07:19 AM

Thanks goos3y. I'm in downtown. You local? While driving to work I was replaying everything in my head. I remember not trusting the factory clamps when tightening them after looking at the throttle body. I remember getting it tight then it started to feel loose. I took that as maybe starting getting stripped so I stopped tightening. I just ordered boost tubes with the t bolt clamps with reward points. Gives me an excuse for some engine dress up. I'll start there and just stay out of boost until next week


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Jonb82 06-03-2016 02:25 PM

Power loss WOT
 
3 Attachment(s)
Hey back again. Changed out everything and scheduled an appointment for a smoke test. Cannot get in until next Friday though. From my research AFRs in the 8s at WOT signifies a boost leak somewhere. Everything I changed on the last install is tightened the fuck down. Twice. Does anyone that had similar symptoms know where to pinpoint the leak? Logs 1 and 2 are the same, just in the 2nd log I deleted everything at low RPM. This was done in 1st gear where my problems originally developed. 3rd log is a second gear pull not going to as high of an RPM though. Boost tubes are tightened by T bolt clamps so I do not think it is in association with the TMIC. Inspected SRI and TIP and they still look good.


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