Core Rc Code 2.4g FHSS Throttle glitch.
 

Ive noticed when setting up the steering points that my throttle was glitching open during movement on the steering stick...

I don't appear to have the trouble when trying it on my other car which means its buggy side rather than tx..

Is it more likely to be the Receiver or the ESC?

Setup as below.
ESC - Hobbyking X-Car 120A Brushless Car ESC
SERVO - SAVOX SC1257
RX - CR152 - Core RC Code 2.4G FHSS Receiver
TX - CR151 - CODE 2.4G FHSS LCD 2 Stick Tx + RX

Have you tried changing the ESC?

I will give that a shot.. I guess its a case of process of elimination.

what colour is the receiver

Clear blue.. ?

are you sure its still bound to the tx.is the light solid or blinking. should be solid. i have had a lot of rouble with this tx rx. have had to send back to shuey twice with 2.4g interference with another club member with same h set.did have more probs with the black rx but still had probs with the blue one too. try to rebind it well away from any other tx rx. think spec is at least 10meters