I believe your power wires to the servo are switched. #4 and 5 I think black is the one closest to the front of the car(negative,#5) and white towards the rear(positive,#4. at least on the car anyway. I am doing an hs-55 steering conversion and that's how my wires are soldered. Good luck Hope this helps
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Track car v2.0
fieldfairy2's mini late model
Operation black widow
H-Crawler
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