My aspire 1.5 prosmatec, 2015 Model does not go beyond 140. Tried it on motorway, it accelerates fine and reaching 140 is not an issue. Beyond 140, no matter how further I push the accelerator, the speed doesn’t go up. Only if there’s a slight slope it hits 150 but no luck beyond that. Ive got the catalytic converter checked and cleaned too but of no use.
Can anyone help me out here as of what could be the issue?
