The electrity no go to the pump fuel, and I changed the main relay of fuel and ignition. if I put directly wire since battery to pumb the honda start very well exist any fuse, between main relay ( new) and pumb?? where is?? thnaks

Make sure the black wire from the relay socket is well grounded. Then check the voltage on the red wire with the key on. If the voltage is less than battery voltage or is intermittent, suspect the ignition switch. If both of those are good, the pcm may be shutting off the pump. Is the engine light on?

try spraying starter fluid if starts recheck your installation of fuel components for power and wire connections are good --if no start than start checking ignition system for spark

You should probably have your ignition switch changed. I replaced the main relay and the fuel pump, then ignition switch. Then had to have my transmission rebuilt.

The fuel pump does not have enough power to supply fuel, or service your nursle.

Make sure you don't have water/moisture in the distributor cap/rotor, check/replace your ignition module and check your starter solenoid.

I suspect the at this point, the main relay is defective. This relay controls power to fuel and spark circuits.

The PGM-FI Main Relay is actually comprised of two individual internal relays. When the ignition switch is initially turned ON , the Powertrain Control Module (PCM) supplies ground to the PGM-FI Main Relay. This ground triggers one of the PGM-FI internal relays that sends battery voltage to the fuel pump for two seconds to pressurize the fuel system.
When the engine is running the PCM supplies a continuous ground to the PGM-FI Main Relay. The supplied ground keeps the relay in the "closed" position providing electrical current to the fuel pump, keeping the fuel loop pressurized while the engine runs.
If the engine is not running with the ignition on, the PCM cuts the ground to the PGM-FI Main Relay, causing the relay to "open" and stop the electric current flow to the fuel pump. As mentioned previously, if the engine is not running, the PCM will only supply ground to the PGM-FI Main Relay for two seconds when the ignition switch is initially switched to the ON position.
The PGM-FI Main Relay also supplies electrical power to the Idle Air Control (IAC) Valve and to the fuel injectors.

TESTING


If the engine starts and continues to run, the PGM-FI Main Relay is working and does not need to be replaced.

1. Locate and remove the relay.

On some models of the Civic and Civic del Sol it is located to the left of the steering column under the dash. Many later models position it either near the passenger right side kick panel under the dash or by the driver left side kick panel up under the dash.

1. Attach the battery positive terminal to the No. 2 terminal.
2. And the battery negative terminal to the No. 1 terminal.
3. Check for continuity between terminal No. 5 and 4.
4. If there is no continuity, replace the relay and retest

Check your fuses if all OK, then check for spark. If you have good spark find the main relay, often under dash. Remove the cover and check out the relay circuit board and look for annular cracking around any of the soldered joints. If any of the joints are 'dry' simply resolder and that should fix the problem for good. The main relay feeds electricity to the both the ignition circuit and the fuel pump so it is good just to be sure that this element is working OK especially on older Hondas that have a bit of reputation of a weakness in this area

those are very good of loosing fuel pump relay .
And if you ck ignition components and they are ok , then ck fuel pump relay(main relay).

Okay this is not so bad. First off you must check the battery. Go to harber frieght and get a cheap multimeter 5 bucks. Then put the leads on the battery terminals red on positive black on negative. What does it read. If it reads less then 12 volts your battery is shot. Now if lets say it does read 12 volts. Then the next possiblity is that there is a short or corriosion somewhere on the leads. So clean the battery terminals and connectors (bright shinny metal) And tighten everything back up. iF you get it started test the battery again this time with the car running and you should see 13, 14 volts. If not then your altenator is not putting out. Finally you must realize that somewhere the electricity is not getting to the starter. So trace the wires. All connection must be tight and corrsion free. Good luck.

try checking the main relay



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