WarNox 1 Report post Posted May 19, 2008 Hey, Not sure if such a thing as a 'rpm sensor' even exists in e36's but my rpm gauge is all over the place. Well its fine up to about 2000-2500rpm but after that it starts 'lagging'. As if its only receives a reading every 1-2sec and updates accordingly. I've tried searching around but cannot come up with anything. Appreciate any help, Gregor Quote Share this post Link to post Share on other sites
kerrynzl 3 Report post Posted May 19, 2008 From what I've tried to decipher out of the bentley manual. the E36 picks up the RPM signal from the Crank position sensor on the front pulley [ toothed wheel ] what Engine have you got ?? Quote Share this post Link to post Share on other sites
Mike 1 Report post Posted May 19, 2008 (edited) everything else running fine? my first thought would be the tach (gauge) itself is on the way out, did it start all of a sudden or slowly been getting worse? Edited May 19, 2008 by Mike Quote Share this post Link to post Share on other sites
WarNox 1 Report post Posted May 19, 2008 Everything else seems fine yeah, the car is running the same as always. M50, 2L engine. The problem came on all of a sudden and been the same since. Quote Share this post Link to post Share on other sites
