044 Bosch Fuel Pump wiring.
05-13-2009, 07:19 AM
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044 Bosch Fuel Pump wiring.
Very confused on how to wire up the 2 pumps i have. Some people are telling me i have to run a small amp?!?!?!
Looked for threads but cant find anything. Can anyone help me out here.
Please and thank you!
Looked for threads but cant find anything. Can anyone help me out here.
Please and thank you!
05-13-2009, 07:50 AM
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Re: 044 Bosch Fuel Pump wiring.
no amp. you need to run a relay
power wire directly from your battery. ground it nearby. and use the stock fuel pump wires as a signal to unlatch the relays ( make it work)
power wire directly from your battery. ground it nearby. and use the stock fuel pump wires as a signal to unlatch the relays ( make it work)
05-13-2009, 07:58 AM
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Re: 044 Bosch Fuel Pump wiring.
we run the + wires to a snow plowing solenoid up front then get power to the solenoid from the alternator and take the main relay fuel pump signal wire to the solenoid and that would activate the pumps when the ignition kicks in
05-13-2009, 08:28 AM
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Re: 044 Bosch Fuel Pump wiring.
the relay needs a switched input to send power.
There are 4poles onn your relay,
Ground to chassis
Power in from battery
Power out to pump
Switched power stock fuel pump positive wire
There are 4poles onn your relay,
Ground to chassis
Power in from battery
Power out to pump
Switched power stock fuel pump positive wire
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05-13-2009, 08:57 AM
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Re: 044 Bosch Fuel Pump wiring.
do you have a hayne's manual for the car? or anytype of manual? I would definitly suggest buying one.
I have a civic but I do not konw if there the same color wires!
I have a civic but I do not konw if there the same color wires!
05-13-2009, 09:00 AM
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05-13-2009, 09:03 AM
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Re: 044 Bosch Fuel Pump wiring.
Some guys use snow plow solenoids. Alot of nitous guys use starter solenoids for the nitrous and fuel solenoids. Very effective and durable. The little relays dont hold enough amps.
05-13-2009, 09:11 AM
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Re: 044 Bosch Fuel Pump wiring.
relay would go something like this:
87 12 Volt battery
86 ground
85 from the factory fuel pump wire
30 to the new fuel pumps
87 12 Volt battery
86 ground
85 from the factory fuel pump wire
30 to the new fuel pumps
05-13-2009, 11:02 AM
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05-13-2009, 12:30 PM
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Re: 044 Bosch Fuel Pump wiring.
Thank you guys for the input. Now how does this sound. Run each pump with its on realy, like this:
87 12 Volt battery
86 ground
85 Ignition
30 to the new fuel pumps
What do you guys think??
87 12 Volt battery
86 ground
85 Ignition
30 to the new fuel pumps
What do you guys think??
05-13-2009, 01:00 PM
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Re: 044 Bosch Fuel Pump wiring.
Hook them up according to the chart above, dont make more out of it than necessary. I have my Inline 255hp and my Intank 255hp hooked up exactly like that chart with 2 Bosch Relays wired with fuses right off the battery, or you could use the alternator output w/e is easier for you.