Autosport Labs

Short version. Can I connect the shift light output to ground through another device without damaging the MJ? Long version. I'm in need of an additional Hi Vis oil pressure warning light. Rather than installing a new light, it has occurred to me that I could use one of the segments of the shift ligh...

Quote (... if you have a SPST switch you can also use a pull-up resistor between the VREF output and the option input. ) I considered this but if I take it from the VREF line, surely that will be placing a 1k shunt across the TPS pot when the switch is closed? Hence my thoughts of a 1k resistor dire...

Yes, I understand that.

However in an effort to simplify the wiring, by using a pull-up resistor I was hoping to utilise an unused SPST switch that is already fitted to the vehicle, with just a single wire running to it

I have read the above and understand that it refers to a unit with a MAP sensor. For TPS, can I simplify the wiring for the option switch by connecting a 1k pull-up resistor between molex connector pins 4 and 7? Or is connecting the resistor to the non-regulated vehicle supply asking for trouble? Th...

I have just recently completed the assembly (TPS) and all checks out ok so far, Have had a trial fit in the car. System operates fine on EDIS alone. However, when I connected the MJL, although I could change the advance on the laptop at (or around idle) I couldn't detect any noticable difference to ...