240sx no fuel beyond fuel pressure regulator

[mariolns]

Hi, I'm having trouble with my 89 ka24e there is no fuel going to the fuel rail. I have replaced the fuel pump, fuel filter, fuel line hoses, and tried 3 different fuel pressure regulators and nothing. I took off the regulator from the fuel rail to see if gas was passing but it is not, although there is gas coming in, basically it gets stuck there. What could it be? not enough pressure? I need it soon getting frustrated just having it there sitting.

[Sileighty_85]

are you sure the fuel pump is turning on?

[daryl337]

The regulator should be on the return side of the fuel rail.


Assuming that fuel is entering the rail (which you say it is), and is not leaving the rail, then I'd have to assume that it is flowing out of the injectors (or leaking out from the topfeed orings).

Get a fuel pressure tester first. Check the lines. If you replaced the entire fuel lines, and the pump is operating because its new... then you should be getting fuel to the rail.

Your details seem a little strange. You said no fuel going *to* the fuel rail? That would indicate the problem is prior to the regulator which is going to be located on the return side.

If you mean no fuel is coming OUT of the regulator, then it sounds like your regulator is stuck closed which would lead to abnormally high fuel pressure. Is your vacuum hooked up properly?

[herbieS13]

is the fuse to your fuel pump good?

[Eramo323]

r the hoses hooked up wrong? r theee injectors firing?

[cotbu]

[mariolns]

thanks, I just found out the hoses were hooked up wrong.

Now the problem is that the engine won't start, just cranks, only starts with starting fluid. I've checked to see if there is electricity going to the fuel injectors and there is, as well as fuel, and fuses all work.

[Eramo323]

Check the crank angle sensor now! Turn the key onto the on position. Do not turn on the car Take off the distributor spin the rotor listen for the injectors clicking if you hear clicking its good if yew dnt crank angle sensor is bad

[mariolns]

Thanks everyone finally I got it to start. I really appreciate all your help.

[Eramo323]

uhm tell us what it was incase somebody tries to google it and ends up in this thread

[mariolns]

true, first the fuel lines were not connected right, second my coil was not connected someone must have unplugged it (check all connections, if its dark wait till the next day or use a big flashlight) thanks guys I really appreciate all your help!!!!!

[4g240]

Originally Posted by mariolns

thanks, I just found out the hoses were hooked up wrong.

Now the problem is that the engine won't start, just cranks, only starts with starting fluid. I've checked to see if there is electricity going to the fuel injectors and there is, as well as fuel, and fuses all work.

I know this topic is long dead, but what was the problem? I am having this exact problem and can not figure it out...

[cotbu]

Originally Posted by 4g240

I know this topic is long dead, but what was the problem? I am having this exact problem and can not figure it out...

Originally Posted by mariolns

true, first the fuel lines were not connected right, second my coil was not connected someone must have unplugged it (check all connections, if its dark wait till the next day or use a big flashlight) thanks guys I really appreciate all your help!!!!!

The reply above your post, had the fixes.

Sent from my Highly Tuned Galaxy S3.5!!!

[4g240]

wow i am blind thanks man, sadly this didnt help as I know all the connections are good and all grounds are clean, and I know my fuel lines are good... guess I keep looking lol