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1993 accord no strart

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  #1  
Old 12-17-2017, 09:31 PM
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Default 1993 accord no strart

I have a 93 accord I bought with a wrecking yard motor installed that wasnt completed. I installed new timing belt,water pump etc. I tried to fire up but will not start. I installed a new distributor, coil, plugs and wires. Previous owner installed a new fuel pump and verified if has good fuel pressure., I get good spark but still will not start. I double checked timing and all is good. I pulled plugs out after cranking and they are dry. no sign of fuel getting to them. Any help would greatly be appreciated
 
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Old 12-18-2017, 06:21 AM
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I have good spark and good fuel pressure to the fuel rail, when I pull plugs i dont seem to be getting fuel to them. They are dry. Compression is good. And Idea greatly appreciated
 
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Old 12-18-2017, 11:52 AM
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Last thing in the fuel chain is whether the injectors are firing.

Each injector has a 2-wire plug. One wire on each is all the same color - that wire should have (+) battery voltage all the time whenever the key is ON. Check for that. If you don't have it, look for connections, fuses, etc.

The ECM switches the ground on & off for each injector. So each of the 4 injectors has it's own wire back to the ECM. Check that if the (+) side of the injector circuits are OK.
 
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Old 12-18-2017, 09:04 PM
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Hi Jim, I checked and only the #1 injector has 12 volts. None on the other 3. I tested the yellow wire on the main relay and that has power ( yellow wire) Do you have a wiring diagram you can share with me?

Thanks
 
  #5  
Old 12-18-2017, 09:08 PM
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I found the fuse box up front and none shows anything for fuel. Like I mentioned earlier I have good pressure up to the rail bu tno fuel being sprayed into cyl.
 
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Old 12-19-2017, 06:21 AM
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Does the main relay also control pulse on injector wires?

Thanks
 
  #7  
Old 12-19-2017, 10:14 PM
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They main relay supplies power to all the injectors through the injector resistor. The engine computer grounds the injector to open the injector.

The injector resisitor is a box with metal fins near the top of the engine bay near the driver's side of the windshield. There is a connector nearby that is identical and can easily be switched. The wires going to the injector resistor connector are something like 1 red and 4 red/blk.
 
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Old 12-19-2017, 11:44 PM
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I found that resistor, So I understand this rite, from the harness with the red and black wires. That should the plugged into the resistor box? Cause rite now its plugged rite back into the harness
 
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Old 12-20-2017, 06:21 AM
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They had the wire switched. Now I have power to all to each connector. Still not getting pulse to the leads. You think it may be a bad main relay?

Thanks
 
  #10  
Old 12-20-2017, 06:36 AM
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The main relay switches the hot lead for all injectors. The ECU provides a ground pulse when it wants to fire a particular injector.

I don't have a circuit drawing for 1997, but there should be links to shop manuals in a sticky thread up top somewhere.
 


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