Does ECU control fuel pump relay?

Both the ignition switch and ECU control the main relay both need to to energize to get output to the fuel pump. There are actually 2 relays built into the main relay. You could ground it out once you found which pin comes from the ecu. With ignition on this should energize the fuel pump once the ignition is on.

Will a bad fuel pump relay cause a car not to start?

If the fuel pump relay fails the fuel pump will be left without power. The engine may still crank when the key is turned, however it will not be able to start due to lack of fuel. This symptom can also be caused by a wide variety of other issues, so having the vehicle properly diagnosed is highly recommended.

Where is the Chevy P30 fuel pump relay?

Well the book shows 3 places it could be. 1 where I already said, 2 under the doghouse on drivers side, 3 inside of the frame rail in the rear. The relay should have 4 but could have 5 or 6 wires in it. The orange wire is 12v power, black= ground, dk/grn/wht is switched power, gray goes to the pump.

Is the Chevy P30 a Class A motor home?

This is a Chevrolet P30 chassis built into a Holiday Rambler Alumalite XL class A motor home.5/5. Aug 04, · The p30 motorhome chassis has with throttle body fuel injection and electronic transmission.

What kind of transmission does a Chevy P30 have?

Aug 04, · The p30 motorhome chassis has with throttle body fuel injection and electronic transmission. Transmission fluid levels are good and wiring seems ok except for the pack of wires that go into the side of the tranny.Chevy Pace Arrow Engine Wiring DiagramChevy p 30 chassis w/ with electical issues

Where is the oil pressure sender on a Chevy P30?

To find it, I first had to find the oil pressure sender, which is at the FRONT of the engine…the front lower driver’s side corner of the engine block, directly under the power steering pump and AC pulleys if you dropped a plumb straight down. Looks to be in decent…although original…shape, and isn’t leaking oil.