I recently put a puma engine in my mk4 fiesta with the 1.25 mk4 gear box on it, found it to be really sluggish in first and the beginning of second gear.

did some reading and found that it was due to a torque limiter they have to "protect" the gear box and presumably drive shafts. I located the sensor people were talking about and gave it a test run with it off and then again with it back in, the difference in first is VERY noticeable!

apparently taking this sensor off would make your speedo not work as its a speed sensor, on my mk4 i have analogue clocks run by a speedo cable so i still have a speedo in all gears even with the sensor unplugged.

Will i suffer any other side effects from leaving this sensor unplugged apart from the obvious extra wear on my box and shafts?

thanks