was wondering if any one can help out. my rpm is 500 rpm off. when im cruising at 65 mph my rpm shows 3000 rpm and when i hook up a tach meter and drove on the freeway at 65 mph and it show'd 3500 rpm. my engine is ls-vtec with 99 b16a2 tranny. no fluctuate on my rpm meter. dont know why its doing this. everything sounds and drives normal

 

Is it the original gauge cluster for the car? I know in my del sol it looked a little off because I have a Del Sol Si that was stock with a D16 but I swapped to a B16 and a cluster face that has the higher red line and mph so when the D16 was in the car it seemed like I was going 2-4 mph faster than I was. The ECU is programmed for a certain cluster so if that is not what is in the car that could be what is off.