i drive a 2000 civic si ...i cant seem to get the car started .... the car worked fine and then it just started to boggg while i was driving and died ...the car has spark .,...because i checked ...the fuses underdash and in the engine bay are all good ... i changed my main fuel pump relay with a new one and it still does the same thing ,... I ran straight power from the battery to the fuel pump and i was able to start up my car .... but when i disconnected the power it just bogged out and died ??? is it possible that my fuel pump is bad???

let me know your suggestions .... i am very tired and dont know how much more i can take trouble shooting ,.... help honda-tech help!!!!

 

If you ran wire straight to the pump and it worked, sounds like you have a wiring issue in the harness.

 

so the fuel pumps not bad???

 

If you connected B+ to it and it ran, sounds to me like the pump itself is ok, from what you said.

 

Try checking any grounds that feed the fuel pump. That could be an issue too.

 

your fuel pump works. it's just not getting power unless you connect the battery to it. just like your car isn't broken if it wont start with no battery.

anyway. check the main relay located under the driver's side dash. get a diagram, it may be hidden. I'm not sure if there's a seperate fuel pump relay in that car.

 

ok ive changed the main relay .... with a brand new one from honda and its doing the same thing.... where are the grounds on the fuel pump ??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xsuperxsonx &raquo;</TD></TR><TR><TD CLASS="quote">ok ive changed the main relay .... with a brand new one from honda and its doing the same thing.... where are the grounds on the fuel pump ??</TD></TR></TABLE>

it's not your grounds. when you supply the pump with POWER, it works. So the grounds are obviously fine. Look more closely at your fuses.

 

Theres a open or high resistance point in the wire between the pump and where it gets is power. You're going to have to just start checking every thing. Every fuse, every relay that has anything to do with the pump. A wireing diagram would probably help you locate things and let you know what colour wires to test.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stock_honda_coupe &raquo;</TD></TR><TR><TD CLASS="quote">Theres a open or high resistance point in the wire between the pump and where it gets is power. You're going to have to just start checking every thing. Every fuse, every relay that has anything to do with the pump. A wireing diagram would probably help you locate things and let you know what colour wires to test.</TD></TR></TABLE>

here's how you narrow it down:

Where do you connect the fuel pump with power direcly that it works? Any wire or component AFTER the point of your jumper connection is good because it's making it to the fuel pump.

 

 

hrmmmm so its a wiring issue??? ... ive changed out my main relay with a new one its still doing the same thing ,... ive check my fuel pump fuse underdash .... fuse#13 and its good ??? curious help me guys !!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B serious &raquo;</TD></TR><TR><TD CLASS="quote">

here's how you narrow it down:

Where do you connect the fuel pump with power direcly that it works? Any wire or component AFTER the point of your jumper connection is good because it's making it to the fuel pump. </TD></TR></TABLE>

Try that. Or start testing with a ohm meter.

 

i will probably check it out tommrow ,..... anyone else have any more useful info????thanks

 

???????????

 

close thread thanks honda-tech

 

Close it? Because you fixed it? What was the problem then?