Fuel System Hell....
05-14-11, 06:00 PM
#1
Junior Member
Thread Starter
Join Date: Dec 2007
Location: Manchester, PA
Posts: 43
Likes: 0
Received 0 Likes
on
0 Posts
Fuel System Hell....
i think my fuel pump took a dirt nap. all these problems started with my ecu frying and causing my injectors to pour fuel into my engine and flood the **** out of it. after fixing the ecu problem i installed a new fuel filter and ran new rubber fuel lines everywhere except at gas tank. tried to start my car again and had leaks due to shitty old hose clamps ( i dont know why i skimped there). after replacing all the clamps i have no leaks, but now no fuel. i can hear the pump relay click when key turns on but i cant hear the pump, i cant remember if i could hear the pump on this car (S5 NA) or not. its been a while since i worked on car. the car is chipped and also runs two stroke so i wonder if it has anything to due with it. i only get some air pressure and a little fuel at filter when i take the line off to check and my return line is dry could i have clogged rail or something, my brain is racked from trying all day, please help this unworthy soul.
05-14-11, 08:06 PM
#2
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,829
Received 2,597 Likes
on
1,845 Posts
stock pump is really quiet, if you can't hear it, that's normal.
if you have everything assembled there is a fuel pump test connector under the hood by the air box, its a 2 pin yellow connector with a rubber boot on it. if you jump the 2 pins the pump should run with the key in the on position.
you may not HEAR the pump, but if you're under the hood you can usually feel it, and it will make noise when its pumping thru the pressure regulator
or if you have things disconnected, you can CAREFULLY put the fuel feed hose into a can/bottle/container, and jump the connector, and you should see fuel. you want do jump the connector, so you can unplug it really quick, the stock pump moves a lot of gas.
if you get nothing, then maybe your pump is bad, or its out of gas?
if you have everything assembled there is a fuel pump test connector under the hood by the air box, its a 2 pin yellow connector with a rubber boot on it. if you jump the 2 pins the pump should run with the key in the on position.
you may not HEAR the pump, but if you're under the hood you can usually feel it, and it will make noise when its pumping thru the pressure regulator
or if you have things disconnected, you can CAREFULLY put the fuel feed hose into a can/bottle/container, and jump the connector, and you should see fuel. you want do jump the connector, so you can unplug it really quick, the stock pump moves a lot of gas.
if you get nothing, then maybe your pump is bad, or its out of gas?
05-16-11, 05:39 PM
#5
Junior Member
Thread Starter
Join Date: Dec 2007
Location: Manchester, PA
Posts: 43
Likes: 0
Received 0 Likes
on
0 Posts
never mind found it, it was missing boot and faded to an off white, good news pump works so i now wonder if my fuel regulator is jammed and not letting air out of system? any thoughts?
Thread
Thread Starter
Forum
Replies
Last Post
Snook
3rd Generation Specific (1993-2002)
21
09-01-15 06:32 PM
82streetracer
1st Generation Specific (1979-1985)
7
08-23-15 09:28 AM