Fuel pump relay bad??

[Swifty1638]

Every morning, when it's this cold out, my fuel pump doesn't wanna turn on. I start the car, and while I do that the pump is on. But, it doesn't wish to prime the car. Also, once the car finally fires up (because of cranking so long) the fuel pump relay clicks, pump shuts off, and the car eventually dies. This occurs about 7-8 times each morning, same proces, until the car finally clicks on, fuel pump stays on, and the car then runs fine. What the hell could the issue be? It's only when it's cold outside. I'm at a loss. I haven't heard of relays going bad because of cold weather. Keep in mind my car is a 255 hi lph pump, rewired. AEM EMS, NO interior at all cept for dash, seats and door panels-it's quite cold in the car. Anyone have ideas?

-A. Swift

[Kracka]

I have 2 spare relays you can try if you want, just swing over to my apt some night after work....I'm only 5 mins from Hopkins Honda.

[Swifty1638]

REally? were is that? pm directions- i might stop by.

Anyone else have ideas to what it could be? I don't know if it is the relay, as it works fine when it's warm out. I just hear it click on n off. I also don't think it's the AEM because I can't see there being relays inside the ecu lol. I really wish to fix this, as trying to start the car 10 mins each morning get's REALLY old REALLY fast!

-A. Swift

[JET]

I had this same problem and it was a popped fuse. Check the alternator fuse and the fuses in the kick panel. I think mine was the Alt. fuse, but it was a few years ago. Check the trigger wire going to the back also. Now that I think about it, it may have been the main relay also.

[Swifty1638]

well, i pulled the mpi relay(gold box, 9 wires, under radio). I hope keeping it warm helps..if those fuses where blown, then how could it have ever worked jet? My car starts, just after trying a few million times.

-A. Swift

[Swifty1638]

Well, after plugging that little gold box back in this morning, it didn't do anything. The problem still exists. I thought having it sit in side overnight, to warm up woulda helped, but I guess not. I hear it clicking, and also the aem clicking, when the pump shuts off each time. Any other suggestions?

-A. Swift

[Kracka]

It wouldn't hurt to try a new relay.

[Swifty1638]

yea, I think i'll try to get ahold of aaron's old relay outta his red shell tomorrow if he's up at LSE. Otherwise, I'll try to get ahold of you chris.

-A. Swift

[Swifty1638]

I jsut put in a brand0new MPI resistor relay, and it STILL does the same damn thing! crank, crank, crank, finally starts, only for hte relay to click, fuel pump shuts off, and car dies. Over and over again. Anyone else with an idea? This is quite frusterating.

-A. Swift

[Halon]

Sounds like my car last fall, when my ECU was bad. Also, I'd check your coolant temp sensor. If it's bad, and is reading an absolutely ridiculous temperature, that will cause hard starting problems.