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== Introduction == I'm building a 1997 Hyundai Tiburon and trying to build it as fast street car. So far the parts list is as follows: ems- Vems 3.3 :) turbo-garrett gt2876R wg-Tial 38mm greddy BOV injectors- 780cc lowz wiseco 83mm pistons pauter rods arp head studs == Status == I have hooked the vems to a 12v supply to start getting more familiar with it. All the sensors work but ive got a first problem with VR sensor but looks like people have had it already. It seems like the signal is very low beacuse rpm gauge shows no movement as i connect the sensor(tried to change the polarity) If the signal was erratic I would need some resistors to clean it but in my case what should be done? megatune configuration is-rising edge, multitooth(60-2), no filtering TRY2 I tried to generate a waveform and input it into vems as rpm signal but with no luck so far... * method ? * parameters ? * result ? * we use ElectronicDesign/TriggerSignalGenerator on linux, usually ** m631 (63+1 that is 64-1) only for testing ** or m582 for 60-2 ** or c270 for 270 primary trigger pulse for 1 sectrig pulse (for auditrigger) The minimum voltage(mV) for LM1815 (VR) to trigger is appr 50..60mV * a PC soundcard with max volume is always enough If you have HALL, the DC offset might prevent triggering, since the (usually internal 10k, but can be external too) pullup resistor pulls up signal to 4.5V or higher. A pulldown resistor (330 Ohm .. 1kOhm towards GND) can be used to pull the signal to 1 .. 1.5V mean value, the PC soundcard's 2V peak-to-peak signal should work from there.
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