hi,

I have a 1995 ex civic with a motor from a prelude (h22). I went to school monday and came back heom 4 hours later with no problem and the car was running a1. I parked it in my garage and 2 hours later i tried to start it up but it didnt work. I cant hear the fuel pump when i turn the ignition to on. The motor is cranking but i am not getting gas. Ive tried to check the main relay wiring and the only thing suspicious is when i connect my multimter in the #6 (ignition switch) chamber in the main relay plug and ground it real good. I turn the key to start and i am not getting any voltage.

What i did so far:

-new main
-new fuel pump
-tired another ecu from a friends civic with the same motor

so far nothing is working and i am getting sick of it

can anyone help me?

txgreasemonkey

. Perform tests, in Sections A and B, below:

http://www.askmehelpdesk.com/cars-tr...das-46563.html

. Test all under-dash and under-hood fuses with a test light or multimeter:

http://www.askmehelpdesk.com/cars-tr...tml#post252145

. Clean the main ECM ground (3-wire brass connector) on the thermostat housing.

. Perform K-Test on the ECM, which may be failing.

malink

well i did the tests...the computer is fine, the main relay is fine, the fuel pump works (i have connected it to the battery) but my problem is that bthe fuel isnt running when i turn the key to on when you see the check engine light for 2 seconds. I can hear all the clicks from the main relay (bought one 2 days ago from honda)

i doubt it could be the ignition switch because the main relay work fine and the computer to. My guess is that i have a loose wire or disconnected wire that doesnt give power to the fuel pump. Any ideas?

txgreasemonkey

If you can hear the fuel pump run, it's likely okay. Have you recently replaced the fuel filter? Check the fuel pressure at the fuel filter.

Did all of the under-dash and under-hood fuses check out okay?
Normally, if the car passes the 3 basic diagnostic tests, you want to focus on the ICM, coil, or distributor housing (failing internal sensors).

malink

no i cant hear the fuel pump running when the ignition is on. Thats the problem

-I have fire, my engine was running like a charm before the failure to start
-the motor cranks
-the starter works

i have no pressure what so ever (me and my friend took off the line from the fuel filter tried to start it but i didnt have any pressure)

could a bad fuel filter cause the fuel pump not to run?

txgreasemonkey

Check the ACG (S) (ALT) fuse in the under-dash fuse box. It's either Fuse No. 24 or Fuse No. 12. Be very thorough in testing fuses with a test light or multimeter.

If you jump main relay terminals 5 and 7, I bet the fuel pump runs great.

If the fuses, ECM, main ECM ground, and main relay are good, then the problem is with the ignition switch. Here's how to check the ignition switch for wear, pitting, or melting:

http://www.askmehelpdesk.com/cars-tr...tml#post224652

txgreasemonkey

Clean the main ECM ground, on the thermostat housing, and apply dielectric grease.

malink

real quick...its a tight fit to get there. Any tips? should i take off the distributor

and its located near the thermostat right? couple of inches behind it?

malink

"f you jump main relay terminals 5 and 7, I bet the fuel pump runs great." i did try that but i coundlt hear the fuel pump work (can you describe more how to test) i have another fuel pump that isnt in the car...is there a way to test it?

i tried and clean the ground but its strip there...ive move it a little bit forward and backward but the connection seems fine (1. Disconnect main relay connector. Check for continuity between BLK Terminal 2 and body ground. If there isn't continuity, repair an open in BLK wire between the main relay and the main ECM ground, located on the thermostat housing. If there is continuity)

how can the ignition switch be faulty if i never had any problems with it and i can hear all 3 clicks (can it give up so easily...usually when i cranked the motor it didnt take 1 second that she was fired up)

i am about to take it to a mechanic...

txgreasemonkey

Normally, the main ECM ground is 3-wire brass connector, which is connected to the thermostat housing. Is your's like that?