dtwtouch

Hello Guys, when I turn on my ignition my fuel pump does not make a sound so does my main relay. My engine does crank.I tried jumping ignition power going to main relay and fuel pump kicks off and main relay clicks. Would that be bad ignition switch ?

civic402lx

Try cleaning and regreasing the contact points inside the switch. If no change, swap it out.

Throwdown

iTrader: (2)

check for power from the pump and if you are not getting any work back from there to the relay and etc ...more then likely it will be the notorious Honda main relay(bad connections or relay itself) but its always good to start with finding power before just switching out parts

dtwtouch

Yeah I thought I was bad relay but switched 3 of them. I get no power coming to main relay when I turn ON ignition. But when I jump a wire to it, it works perfectly.
I checked my ignition switch with multi meter and it switches power perfectly as well. So why does it not get to the main relay itself ?
So while jumping the cable I get flashing "green key" light could it be immobilizer problem ?

dtwtouch

Anyone with any advice? I am a lost cause over here. No power coming to Main Relay from ignition switch with good ignition switch.

dtwtouch

I can only go with bad connections at this stage any chance you would have a wiring diagram to help me with my problem. Something that would show me a wring path from ignition switch to Main Relay?

tamboo

i'll send you a link to free service manual place.
cant post here or it's a spanking. 8(
have a look at this link, if it's black just toss it unless no $$:

http://www.team-integra.net/forum/19...-cleaning.html

mk378

Could of course be a blown fuse. Power comes from the switch, through the fuse box, to the relay and ECU.

When you turn key on but don't crank, the oil, battery, and check engine lights should all come on. Two seconds later the check engine light goes out but oil and battery stay on. Does any of that happen?

dtwtouch

I checked all fuses and they are perfect.
When I turn ON the ignition there is only Oil and Battey light (very dim), there is no power from ignition to relay or ecu (no engine light).
But when I jump pin No.5 on Main Relay fuel pump kicks in and ecu turns on with solid engine light (Batt, oil and CEL lights shine brighter) and it gives me code 92.

Ill try tracing wire from ignition to main relay could find where it is losing power

dtwtouch

Thank you all for your input guys got her started Was bad wire ruining from fuse box to main relay + 2 Bad spark wires. When I started idle kept surging up and down so I cleaned the air control valve. Now engine works like clockwork