bucking issue

[dani22]

good day tuners
I have a local cs3 lancer with the 4g18 cvt
Whenever I drive over bumpy road surfaces the engine bucks and hesitates (while pedal is depressed) for a couple seconds, then when I get back on smooth surface it smoothens out.
If I go over the rough surface with my foot off the pedal this does not happen...
Any ideas what causing this??

[INHUMAN]

Fuel filter, pump, egr valve, oxygen sensors, spark plug, air filters...host of reasons. Have a scan done

[gastly369]

good day tuners
I have a local cs3 lancer with the 4g18 cvt
Whenever I drive over bumpy road surfaces the engine bucks and hesitates (while pedal is depressed) for a couple seconds, then when I get back on smooth surface it smoothens out.
If I go over the rough surface with my foot off the pedal this does not happen...
Any ideas what causing this??

Check your tps sensor jack...weird I had that with my lancer and was like wtf...could get luck and it's that lol