Question about K-Rain 1522 24V Coil Pump Start Relay

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How to wiring and diagram the K-Raind 1522 24v coil pump start Relay

Iam istalling this K-Raind 1522 24v coil pump start relay with ESP-4m controller 4 station

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Power to my timer but does not open zones?

Posted on Jul 24, 2014

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2000 olds siluette fuel pump not functioning,replaced fuel pump,tested relays,still dont hear it pumping. suggestions????


Do you have a multi-meter or test light?
There is a fuel pump fuse, in the fuse/relay distribution box, did you check that? That fuse and the fuel pump relay would have a "hot at all times" designation. Use the test light to see if the fuse has power at it. Next move to the FPR, pull it out and check for power. One of the relay terminals (it is #30 designation on the relay) would also be hot at all times (this terminal is coming directly from the fuse). Use the test light to check for that.
Look at the relay: on the side is a descriptor, or a diagram showing the relay terminals usage: #30 is the power feed, #87 is the feed on to the gas tank to the fuel pump. The other two terminals are the "coil side" of relay, #85 and #86, the coil side is what turns the relay on (from a signal from the pcm) and lets power pass to the pump.
If you have power at the relay terminal, you can take a short jumper wire and jump terminal 30 with 87. this will check the wiring circuit- it will send power on to the pump, and it should start working. If pump does not work, check for power on the gray wire at the gas tank connector. If no power, (and you still have the relay jumpered) then you have a bad wire from relay to the gas tank. If there is power on the gray pump wire, but still no pump when it is connected, then possibly the ground on your car for the pump is bad, or you maybe got a defective pump. Not likely, but it has happened before.
Now if you can jumper the relay and turn the pump on, we are down to the problem: apparently the coil side of your relay is not working-not turning the relay on, because of a missing signal from the pcm, or because the ground for the coil side is bad, or maybe just a bad relay.

May 07, 2017 | Cars & Trucks

1 Answer

I have a 2005 dodge neon that will crank but wont start. I have replaced the cam shaft sensor, crank sensor and the coil pack. Iam also not getting spark to the coil pack. Any suggestions?


Primary voltage to several systems, including the ignition coil, dark green wire with orange tracer. That voltage comes from asd relay. There is a fuse for asd relay. To check for voltage the engine has to cranking. The control side of asd relay, the computer has to ground it before it will energize. Did you check wiring circuits for cam and crank sensor connectors before replacing sensors? Are there any applicable trouble codes?
Are you ok with testing wiring circuits?

Feb 16, 2017 | 2005 Dodge Neon

1 Answer

94 s10 fuel pump relay clicking no start


The clicking noise at the relay indicates that the relay is bad, or that the wires to the relay and/or connector is bad.

A relay is an electronically activated switch. Inside is a coil. When 12v+ is applied to one end of the coil, and a ground is applied to the other end, the coil gets charged, creating a magnetic field. This magnetic field literally moves a metal lever from position A to position B. One end of the lever is attached to constant battery power. When coil not energized, the lever rests in postion A (which in the case of the fuel pump relay is feeding the battery power to an unused terminal). When the coil is activated, the lever moves to position B (which in this case is a terminal connected to your fuel pump wire). Thus, when the relay is activated, 12v+ is being directed from the battery to the fuel pump.

This fast clicking indicates that the relay coil is not getting a constant voltage or ground supplied to it, thus the lever is moving back and forth between position A and position B, either there is a wiring issue, a connector issue, or an internal issue with the relay.
The relay has 4 wires, black, grey, orange, green with white stripe.
black = ground
orange = battery = 12v+ always
grey = wire out to fuel pump (on some cars this wire is tan with white stripe)
green/white = signal wire from ECM

When key is turned ON, the ECM sends 12v+ out on the green/white wire to the relay for about 2 seconds - this activates the relay coil for 2 seconds, thus running the pump for 2 seconds (priming). When the vehicle is started, the ECM sees a constant ignition signal from the ignition module, and sends a constant 12v+ out on the green/white wire, thus activating the relay coil constantly, and thus running the pump constantly.
When car shut off, no more constant ignition signal, thus ECM stops sending the 12v+ out on the green/white wire.
So, you can kind of test your connector ...
1) remove connector from relay
2) jumper a wire from the slot for the orange wire to the slot for the grey wire - fuel pump should run - wiggle wires to verify at connector
3) probe black wire slot with ohm meter - make sure black wire has constant ground - wiggle wires at connector
test relay ...
1) remove relay from connector
2) rig a ground wire to the tab that had the black wire when in connector
3) apply 12v+ to the tab that had the green/white wire - relay should click once and do this every time you apply the 12v+

That should help you track it down to either a connector problem, a wiring problem, or a relay problem.

Nov 28, 2015 | Cars & Trucks

2 Answers

No fuel getting to motor so no start. replaced pump fuses and relays all good. there is spark


you will need to check the plug to the pump on top of the tank. check for voltage. then if no volts trace the wires back. also you should check the relay have some one at the relay listening to see if it clicks when you turn the key. no click no volts no volts may be a warn out relay, if it buzzes change it.

Mar 20, 2014 | 1995 Plymouth Grand Voyager

2 Answers

No power to fuel pump on 92 olds silhoutte


The oil pressure sensor only keeps the pump running after the vehicle is started. If you turn key to on, the computer should signal to the fuel pump relay, turning the pump on for a couple of seconds to pressurize the fuel system. Then the computer signal stops. When the key is turned to start-cranking the engine- the computer again energizes the fuel pump relay, keeping the pump running until the engine starts.
If you have a voltmeter or test light, pull the relay out and check the relay terminals. One should be hot at all times-the power feed for the pump. The computer signal will be on the coil side of the relay-will have power for 2 or 3 seconds after key is turned to on. Or it will have a constant signal when the engine is cranking. If you can find both hot terminals at the relay, then start looking for a bad wire from relay to pump, or a bad ground for the pump, or a bad ground for the relay's coil side. Post back if unclear or other questions. When you pull the relay out, the diagram for it will be on the side of the relay-telling you which is the power feed and the terminal to the pump, and the coil side of relay, both the coil power side and the coil ground terminal.

Jan 16, 2014 | Oldsmobile Silhouette Cars & Trucks

1 Answer

I checked the fuel relay by using a paper clip (1990 HONDA ACCORD 2.2) AND THE FUEL PUMP CAME ON, NOW, IF I JUST DISCONECT THE RELAY AND USE AN ON AND OFF SWITCH, WILL THERE BE ANY PROBLEMS?


A relay has two sides to it-the power feed and the line to the pump is the one side of the relay. The other side is the "coil side"-what makes the relay switch on and pass power from the power feed to the fuel pump wire. The coil side has a signal from one source-your computer-and the other coil side wire goes to ground, usually. When the coil side is activated by a signal from computer, the other side of relay closes contacts so power is passed to the fuel pump.
Don't know if a switch will work there, but you could try it. You may need to look at a wiring diagram. If the coil doesn't get a signal from the computer, there may be other problems, like in your wiring or in the computer.

Apr 09, 2013 | 1990 Honda Accord

1 Answer

2002ford windstar will not run with fuel pump relay in but will run with jumper wire in its place


So the jumper only takes the place of the higher current
contacts when relay is energized

Now use a wiring diagram to diagnose the relay coil or
control circuit to relay coil,basically found your problem

Feb 12, 2013 | Ford Windstar Cars & Trucks

1 Answer

2000 buick regal. Losing fuel pump voltage


http://www.bbbind.com/free_tsb.html free wiring diagrams ! Enter vehicle info. year , make , model an engine size . Under system click on engine ,then under subsystem click on fuel controls . Then click the search button , then click blue link .The 7th diagram down shows two fuel pump relays , This I have not seen before ! One is speed cont. relay an the other is just fuel pump relay ? The speed control one has a resistor in the electrical circuit . That is way your droping voltage .
Fuel Pump Electrical Circuit Diagnosis (VIN K)
Fuel Pump Electrical Circuit Diagnosis (VIN 1)

The PCM alters fuel pump speed by energizing the fuel pump speed control relay. Under normal conditions, the fuel pump speed control relay is energized. The applied voltage to the fuel pump is controlled by a resistor assembly. When higher fuel volume is required due to increased engine load, MAP sensor value over 90 kPa the PCM de-energizes the fuel pump speed control relay circuit. The increased voltage to the in-tank fuel pump allows a higher volume of fuel to be delivered to the fuel rail. The PCM also compensates for low system voltage by energizing the fuel pump speed control relay.

Have it check for codes !
Did DTC P0230 or DTC 1260 set?
--
Go to DTC P0230 Fuel Pump Relay Control Circuit or DTC P1260 Fuel Pump Speed Relay Control Circuit
Go to Step 3

May 05, 2017 | Buick Regal Cars & Trucks

3 Answers

I have a 1996 yukon 4 door it wont start thought it was the pump becuase i didn't here it dropped the tank and checked it by running wires to it and it works checked the wires and there is no power spayed...


You did that the hard way
If you had a wiring diagram,you could have started anywhere in the fuel system,checking as you went,until you had no voltage drop.
You could also have found a place, to put power to the pump, without removing the tank
There is a fuse,relay in most cases,fuel pressure regulator,etc in all vehicles. Have to know where and what to test.
Your working blind with no print of a system, your not knowlegable of.

Oct 03, 2010 | 1996 GMC Yukon

3 Answers

Fuel pump will not come on. I have power at the relay but no control power to turn the relay on. I jumpered the contacts and the fuel pump fires right up.


If you powered the fuel pump by bypass the relay, then either the relay is faulty or the wiring to the relay is faulty or there maybe a fuse that is blown.
When the fuel pump relay coil is energizes, the relay contacts will close to supply power to the fuel pump.
Remove the relay then identify the relay coil connectors, then apply 12volts to these connectors, if the relay clicks then the relay is probably OK unless the relay contacts are faulty and then the fault is in the wiring to the relay coil.
Get a service manual wiring diagram and trace the wiring from the relay connector back to the control box/ignition.
You can use a 12v globe or a multi-meter to check the relay coil at the relay connector to see if it energizes

Oct 28, 2009 | 1995 Honda Passport

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