# Power FC help

**URL:** <https://forums.speedlife.net/t/power-fc-help/127802>\
**Category:** SON240sx Automotive\
**Created:** [September 5, 2009, 10:26pm UTC](https://forums.speedlife.net/t/power-fc-help/127802 "2009-09-05T22:26:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Silvia\_Drift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/silvia_drift/32/5271_2.png) [@Silvia\_Drift](https://forums.speedlife.net/u/Silvia_Drift)\
**Post date:** [September 5, 2009, 10:26pm UTC](https://forums.speedlife.net/t/power-fc-help/127802/1 "2009-09-05T22:26:38Z")

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Hey guys, I am having a huge issue with the Power FC D Jetro I just bought. I was hoping some of the more experienced members on this site (Dan, Varun, Dustin, Gonad…) could help me out.

I went to install the PFC on my USDM convertible with a redtop sr and completely failed. The car cranks but will not turn over. Also, the commander is not turning on. This is just a plug and play ECU so I was confused. I plugged the stock ECU back into the car and it started up fine.

I decided to try the PFC in my Silvia which also has a redtop sr. I bolted it in and it works perfectly; commander turns on and everything.

Does anyone know what is wrong?

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**Author:** ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)\
**Post date:** [September 6, 2009, 1:01am UTC](https://forums.speedlife.net/t/power-fc-help/127802/2 "2009-09-06T01:01:33Z")

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your vert wiring is hacked, try getting new harness!