I have a 2000 maxima that worked fine until I left it sit for two weeks , I I tried to start it , it stuttered then died it’s been a year I’ve made sure to use de fogging spray befor ever turning over , I’ve replaced spark plugs, coil packs, fuel injectors and o rings , fuel pump , fuel pump filter , fuel pressure regulator , pcv valve and head gasket wile I was under there , I believe I may have stuck the vaccume hoses on wrong or the mafs bad ? Or Idrk I just don’t wanna give up on this project any help would be appreciated the manual doesn’t go into depth on vaccum lines and nobody has had my problem on the forums so


Should this t line run straight to the fuel regulator

Shown here
I’ve seen


And should this line be going to to the other fuel pressure regulator because it is , this problem is nothing with spark , it’s ran on starting fluid

What's missing? Spark, injector pulse, or compression?


Edit. Just saw the picture descriptions.
I can't see how you could have messed up the fuel line connections. Vacuum lines being wrong won't cause that problem. It'll still fire.

Check fuel pump fuse?

The fuel injectors and pump are brand new and work fine , the fuse is fine too , I can hear them , it ran on starting fluid so the spark is there , but ig I’ll be checking for fuel pressure any suggestions on where to test from?

Whats your security light doing? Solid? Blinking? Nothing at all? If somehow the anti theft got triggered, that would disable your fuel pump. Idk how that would happen but its not unheard of.

I think someone tried to steal it when it was parked , I don’t know what I’m looking at

There seems to be an orange wire just gone , red yellow and two black wires are just hanging too

the light flashes what I assume is normal

You have to be more accurate. If there is a missing connection, all bets are off.
Also, check your ENG CONT1 fuse (in the fuse box, next to the battery). More information here: https://drive.google.com/file/d/1iOG...mKlsHwSf5/view

Has someone been messing with these wires that are loose? You sure you replaced the Head gaskets? You sure it wasn't the valve cover gaskets instead?

Ok so there’s no fuel pressure , 0 I use this forum thing on my phone and have a hell of a time navigateing and search never works or idk the keywords to use , can anyone link a thread with fuel pressure troubleshooting any helps always appreciated, everybody on here is awesome

hot wire your fuel pump directly from the battery.

The pump will run then.

You should be able to start the engine at that point.

If the engine does run, you will know to look for broken wires between the pump and it's normal power source.

Always test things before firing the parts cannon based on guesswork.