I was driving, and all of a sudden the engine started bogging really bad. I was just taking off with a bit of gusto, so I figured I must have put in 4th instead of 2nd (I didn't), and tried putting it back in. The tach moved, so it was still getting a bit of fuel at that point, but immediatly after that, nothing. I coasted into a parking lot, Tried to crank the engine... nothing. Turned it off, turned it back on, nothing, and I noticed the main relay wasn't clicking over. Swapped the ECU for my spare one... nothing, and main relay still not clicking over. Opened the service port on the fuel rail, turned the ignition to on, no fuel came out. Whatever the problem is, it has to do with the main relay, but this one is brand new, so I'm thinking it's indirect, something else not telling the main relay to click over. Where should I look for this something else?

 

just went out to look for answers, I swapped out the main relay with a spare. As I thought, that didn't take care of it. Another thing I just noticed... the check engine light is on, even when I try to reset it, and won't flash when I put a jumper in the diagnosis spot to check the code (just stays solid). And just tested the fuel pump, it's good.

 

*sigh* bump... anyone?

I did some voltage measurements. I'm getting power from the ignition to the main relay, but I'm not getting power from anywhere else... there sould be somthing like 4 hot wires and 3 not, and I've got 1 wire that should be giving power doing so, and I know that the lead to the fuel pump is good, but that leaves 3 wires screwing up and 2 I'm not sure... if all my fuses are good, what would keep these 3 wires from giving the main relay the power it needs?

 

got it

 

Bad "new" relay?

 

nope, short in the lead between the underdash fuse #4 and the main relay terminal #1