if any body has any ideas please let me know i have a 91 ef and one day i put a differant ecu in and after while the pump didnt want to prime a couple of times so i changed the relay (i have six of them ) so i tried all of them every time it happend.it all started when it rained i have no water any where everything is dry.so i tried a differant ecu it worked right away for a few days until yesterday when it rained.still dry.i have a walbro pump do you thimk it might be goin out.i didnt know pumps go in and out like that .
so please if any ideas let me know thanks

 

ok so no body has never had this problem so ok now doese anybody know how to bypass the fuel pump with a toggle switch so i can drive my car when it rains

 

my OEM one went out after driving through a deep puddle in the rain one time as well. and yes they do go out, especially if it has sat for a while.

 

yea but the car doesnt sit its my dd i can see the puddle thing but i can drive it to work then it rains and 5 hours later it doesnt want to prime its weird

 

How the Main Relay works

 

^ good info!

 

this is really awsome info thanks alot bro

 

give me rep...

 

ok with that awsome info i put a toggle on the fuel pump side but then the injectors dont work i cant figure this out when it rains pump cant prime its killing me.i serched all over the net but no answers people have the same issue but no answer please help thanks

 

The main replay powers your pump AND injectors. If you got the pump working now and no injectors then your main relay is bad.