Q: Rides noticibly rough between 1500-1900 RPM (30-40mph). It feels like I'm running on bad gas.

asked by

Tamiyal G

on August 02, 2016

History: June 4th- I had my valve cover gaskets replaced. Car was fine afterwards. July 2nd- I replaced my camshaft sensor in Bank 1 (OEM part from Infiniti) after it failed while driving. Ever since, I have not been able to diagnose a roughness when driving and settling in at an approximate speed of 30-40 mph (1500-1900 rpm). Outside of those ranges, I am not noticing this roughness. It can really be felt in the pedal as I give the car gas. I do know that prior to the recent services, I never experienced this before with my car. I am the original owner. I always use appropriate 93 octane gasoline (Shell V-Power). This problem is noticed after car is warm. Any ideas? Thanks!!!

My car has 146700 miles.
My car has an automatic transmission.

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Q: Rides noticibly rough between 1500-1900 RPM (30-40mph). It feels like I'm running on bad gas.

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