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Does your new main relay look like is?
Does your new main relay look like is?
See if this help (hope link works)
http://www.acuraworld.com/forums/f40/changing-main-relay-rl-diy-72813/
See if this help (hope link works)
http://www.acuraworld.com/forums/f40/changing-main-relay-rl-diy-72813/
Great, first I would check fuses 14 and 22.
Next check inputs/output from main relay.
With key in and in the on/run position,
check input pin 3; should be 0vdc
check input pin 5; should be 12vdc
check output pin 2A (yellow wire); should be 0vdc.If above check good, next with key in and in the start/crank position.
check input pin 3; should be 12vdc
check input pin 5; should be 12vdc
check output pin 2A (yellow wire}; should be 12vdc.If all above check are good, main relay is good.
Now need to check inputs/output from fuel pump relay.
With key in and in the start/crank position,
inputs pins 2 and 3 must have 12vdc
output pin 1 must have 12vdc
(pin 4 is coil ground control by PCM)If all above check are good, fuel pump relay is good.
Next disconnect connector at fuel pump and check black/yellow wire for 12vdc.
IF 12vdc at fuel pump connector, now need to check for good ground to fuel pump.
With ohm meter, check black wire to body ground.IF 12vdc and ground is good at pump fuel, replace fuel pump.
Before replacing fuel pump, run a 12vdc line and body ground directly to fuel pump and test fuel pump.
Great, first I would check fuses 14 and 22.
Next check inputs/output from main relay.
With key in and in the on/run position,
check input pin 3; should be 0vdc
check input pin 5; should be 12vdc
check output pin 2A (yellow wire); should be 0vdc.If above check good, next with key in and in the start/crank position.
check input pin 3; should be 12vdc
check input pin 5; should be 12vdc
check output pin 2A (yellow wire}; should be 12vdc.If all above check are good, main relay is good.
Now need to check inputs/output from fuel pump relay.
With key in and in the start/crank position,
inputs pins 2 and 3 must have 12vdc
output pin 1 must have 12vdc
(pin 4 is coil ground control by PCM)If all above check are good, fuel pump relay is good.
Next disconnect connector at fuel pump and check black/yellow wire for 12vdc.
IF 12vdc at fuel pump connector, now need to check for good ground to fuel pump.
With ohm meter, check black wire to body ground.IF 12vdc and ground is good at pump fuel, replace fuel pump.
Before replacing fuel pump, run a 12vdc line and body ground directly to fuel pump and test fuel pump.
Is this a no crank – no start or a crank – no start problem.
Do you have a volt/ohm meter and know how to use it.
Is this a no crank – no start or a crank – no start problem.
Do you have a volt/ohm meter and know how to use it.
1. Resistor is for arc subpression so that contacts don’t get pitted.
When contacts are closed, resistor is by-passed.2. Maybe fuel pump but you need to check a better wiring diagram
Try http://www.bbbind.com1. Resistor is for arc subpression so that contacts don’t get pitted.
When contacts are closed, resistor is by-passed.2. Maybe fuel pump but you need to check a better wiring diagram
Try http://www.bbbind.comSounds like this 3rd wire is the ground wire for motor.
Maybe this ground wire was attacks to bolt that holds starter to motor.
If you remove this 3rd wire, and motor not property grounded, you will have other electrical issuses.
Good find.Sounds like this 3rd wire is the ground wire for motor.
Maybe this ground wire was attacks to bolt that holds starter to motor.
If you remove this 3rd wire, and motor not property grounded, you will have other electrical issuses.
Good find.[quote=”MangrumD” post=61762]Its a starter/solenoid unit, solenoid its attached to the starter with two hex screws. I will pull the starter in the morning, and do those checks.[/quote]
Mark your flywheel and turn motor by hand.
Does mark move?[quote=”MangrumD” post=61762]Its a starter/solenoid unit, solenoid its attached to the starter with two hex screws. I will pull the starter in the morning, and do those checks.[/quote]
Mark your flywheel and turn motor by hand.
Does mark move?Does your car have a ford start relay and starter motor or starter/solenoid unit?
If starter/solenoid unit
Must disconnect all wires at solenoid.
Check solenoid for short at 12 volt input and output to case,
If meter reads zero ohms, replace solenoid.
Then, with a 12 volt jumper at the solenoid coil and another jumper body ground to solenoid case.
Again, check solenoid for short at 12 volt input and output to case,
If meter reads zero ohms, replace solenoid.Check solenoid contacts.
With a 12 volt jumper at the solenoid coil and another jumper body ground to solenoid case,
ohm out contacts—meter must read zero ohns.
If any resistance on meter—replace solenoid.Still need to check starter motor for short to case.