Midwest 7's

iTrader: (4)

ok so i got my new fuel pump ran into my gas can with power going directly to the pump so i know i have good pressure. problem is the car wont start and there is a tremendous amount of pressure building up in the line, like fuel is not getting through. anybody have any ideas? car has sat for 5+ years and im trying to see if she'll start.

Rx-7Doctor

iTrader: (13)

Did you take off the feed line to the injection piping and verify that fuel is getting to that point?

Midwest 7's

iTrader: (4)

what would cause it to not get to that point?

jarath

Here's what I did when I had the exact same issue when I first got the car. Verified trailing coil, leading coil were wired right (blue connector in front - trailing, white connect in rear - leading) and made sure the coil to distributor plug wires were hooked up right. The ECU can tell when it isn't and it shuts the fuel injection down. Soon as I reversed it car started right up. The GSL-SE's fuel system is very sensitive to the coil hookup and not only have I been the victim of it but lots of others have had trouble with it also.

PS: I also replaced the injection seals as they had become plastic over time. Doubt that has anything to do with your issue but if you take them out you might as well replace them.

linexrandy

If what he said above didnt work, assuming you cleaned out the 5 years of gas (which by now is varsnish) a chunk of said varnish could be clogging your lines. I went through 2 fuel pumps till I figured that one out. Mine was clogged in the hardlines, about 3 feet in front of the fuel pump. 125 PSI air compressor should fix it.

trochoid

iTrader: (6)

Plugged fuel filter, of course.

Midwest 7's

iTrader: (4)

yea im not even using the lines yet as im sure theyre probably clogged, i'll make sure and blow them out before i hook everything up.

Midwest 7's

iTrader: (4)

could be my problem, i have not checked for spark yet.

Rx-7Doctor

iTrader: (13)

Well, the only 2 things I can think of that would prevent fuel from reaching the front of the vehicle are the following. 1). An extremley clogged fuel filter, which is pretty tough to have on the Fi filters unless their was a ton of rust in the tank. 2).
Somewhere along the metal line from the back to the front got crushed.

What I would be looking for is what jarath stated in his response to make sure that the trailing ignitor is working. Also make sure the AFM is operating correctly. If the fuel gets to the injectors, but the AFM isn't operating properly then the ECU will not get the proper signal to open the injectors. You also could take the plenum
off to access the injectors, verify that the wiring is intact to the injectors. Then energize your fuel pump and crank with a remote starter button and see if the injectors are opening and spraying fuel.

Have you pulled a plug to determine if any fuel may be getting to them?

jarath

If that's all it is count your lucky stars, I have a fuel problem right now where if the tank isn't full, after 3 - 4 gallons it sputters and dies... I think there is a hole in the pickup somewhere lol. It's a really crappy problem to fix too cuz you never really know if you fixed it till you run it out of gas (tried fuel filter, ran out of gas, had to call wife).

jarath

The way we verified it as the injectors was by just spraying some cleaner into one of the vacuum lines on the dynamic chamber and it turned over. Kinda gave us the indication the injectors were giving us trouble.

Rx-7Doctor

iTrader: (13)

Good tip.