Ecumaster forum

thanks for the input. I set the pump as always on on the PMU, I have tried this before but after redoing some strategies on the ECU side the pump seemed to do what it was supposed to do. The car started up and actually idled with out throttle input. FIRST TIME IN 2 years. There is always an easy sol...

The ECU is a Syvecs S8 with a Fuel lab Fuel pump. 1. ECU FUEL PUMP DUTY -Yes 0 to 100 2. FUEL PUMP DEMAND - Yes this is the on/off 3. FUEL PUMP OVERRIDE - might be the override on the CAN button panel, it will turn the FP on with the button. 4. MASTER POWER - master switch Yes Note: I am trying to u...

one more

other set up pic.

OK, here is the set up. Also the PWM signal should be coming from the ECU and I am only using the PMU as a relay to power it. So The PMU will send power to the pump like a relay would. The ECU sends the PWM to the Pump for priming which it does. The ecu will send the PWM signal once the car is runni...

I recently submitted an email for inquiring about tech support but will post here to see if I can get some support. Basic issue: ECU should control Fuel pump PWM PMU when set to turn on pump only While starting the car, the fuel pump does not operate. Any suggestions on where to start. This system w...