hobao gpx4 transmitter problems

[HSPbackwash]

i just bought new AA batteries for my cars transmitter and receiver not the best brand but alkaline. When my car engine isnt running the transmitter and receiver responds great but when the engine is operating the servos wiggle around uncontrolably and the car accerlerates without without hitting the throttle. Dont know how to solve this problem. Plz help!!!!!!

 

[hamz9561]

It sounds like the batteries may not have a full charge in them out of the package. Try changing the batteries with some new ones. You might want to try some rechargeables in the TX and purchase a rechargeable receiver pack for the car when you can afford it.

 

[323 R/C Racing]

Check all your connections sounds like you have something loose.