Outline · [ Standard ] · Linear+ Duster 1.6 105hp - sluggish acceleration

Hello, recently I bought a Dacia Duster 1.6 105hp, 4x2, 2012 year of production. The next day I changed the timing belt, oil and after small mileage in town I installed LPG injection system (KME pro + OBD). The mechanic that installed the LPG system changed the ignition plugs with such that are "suitable" for propane, as he said. Lately I traveled on highway and noticed that the car accelerates quite slow at high speeds(after 100km/h on 4-th and 5 gear) and if the is an uphill it stops accelerating around 100km/h even with full throttle. (pedal to the metal) . No difference between petrol/gasoline and propane. When on idle, when I suddenly press the throttle fast enough, the engine starts to "think" for a second and then revs up. Sometimes the engine does not start from the first time - starts, works for a second or two and turns off. Sometimes when I make turns and park with my headlight turned on, I see them flickering as if the voltage drops. My electric steering wheel pump is too noisy I thing - it emits high pitched sound even without turning the steering wheel. Thanks in advance. This post has been edited by Dustero: 29 Oct 2023, 18:10

Hello, recently I bought a Dacia Duster 1.6 105hp, 4x2, 2012 year of production. The next day I changed the timing belt, oil and after small mileage in town I installed LPG injection system (KME pro + OBD). The mechanic that installed the LPG system changed the ignition plugs with such that are "suitable" for propane, as he said. Lately I traveled on highway and noticed that the car accelerates quite slow at high speeds(after 100km/h on 4-th and 5 gear) and if the is an uphill it stops accelerating around 100km/h even with full throttle. (pedal to the metal) . No difference between petrol/gasoline and propane.
When on idle, when I suddenly press the throttle fast enough, the engine starts to "think" for a second and then revs up.
Sometimes the engine does not start from the first time - starts, works for a second or two and turns off.
Sometimes when I make turns and park with my headlight turned on, I see them flickering as if the voltage drops.
My electric steering wheel pump is too noisy I thing - it emits high pitched sound even without turning the steering wheel.

Thanks in advance.

This post has been edited by Dustero: 29 Oct 2023, 18:10

Duster 1.6 wasn't exactly quick in higher gears when it was new, but a comparison to before doing the timing belt change would have been usefull.