smckeown 1 Posted February 7, 2007 Great feature this But the instructions indicate it's only for cranking over purposes/speed. One of my concerns is that my crank sensor might not be consistently accurate at high revs. I was hoping you could spin the engine at high revs and use this feature to see of the signals are still accurately spaced. Is there a reason why this can't be used as such ? Or is there another way of determining if a crank sensor is accurate under all conditions ? Share this post Link to post Share on other sites
M3Evo 0 Posted February 7, 2007 Out of interest, who come you think the sensor might not be accurate at high speeds? Share this post Link to post Share on other sites
Super Josh 4 Posted February 7, 2007 Just borrow a 'real' oscilloscope and put that on the output of your CAS, and you'll soon know what's happening. After all, you wouldn't use a 'Software' DVM to measure your battery voltage. Josh Share this post Link to post Share on other sites
veloce200 3 Posted February 7, 2007 Just borrow a 'real' oscilloscope and put that on the output of your CAS, and you'll soon know what's happening. After all, you wouldn't use a 'Software' DVM to measure your battery voltage. Josh thread hijack alert ! anyone got an old ocilloscope they don't want? (Sean you can rent it off me ! ) Share this post Link to post Share on other sites
sonofsam 5 Posted February 7, 2007 I have one your both welcome to borrow, for a small fee Share this post Link to post Share on other sites
Rippthrough 98 Posted February 9, 2007 Why would it not being reading right, should be good 12k rpm or so at least. Share this post Link to post Share on other sites
rescue dude 0 Posted February 10, 2007 Why not phone Dta up and ask them? You will find Alan Warburton( the boss man) very helpful. It's only a small company so he will most likely answer the phone himself. Share this post Link to post Share on other sites
jimbean 0 Posted February 10, 2007 (edited) isn`t a crank sensor just an inductive loop.. all it does is make a ac voltage the only things to check are gap between wheel and sensor and wiring have you used a shielded sensor wire for the speed sensor? check resistance of sensor.. then wires to ecu.. if 1 or all are out of tollerence.. good.. can be changed the reason u check it at crank is the reading is quite slow and readable the faster you go the closer the dips will be and difficilt to read the theory is ... if its good at crank it`s good right through the only way it can alter if something is loose or vibrating Edited February 10, 2007 by jimbean Share this post Link to post Share on other sites
pugrallye 0 Posted February 10, 2007 Crank sensor is either Hall or inductive, hall produces a square wave (not found on 205's though) inductive produces sine wave signal both need scoping. It is quite possible if you have bad sheilding on the cable that the signal will become noisy at high RPM Share this post Link to post Share on other sites
