95 s14 PLEASE HELP totally stumped

[Doya]

And sorry to 240-slide-ride for thread jacking

[240-slide-ride]

lol all good

so the buzzing noize appears to be coming from the back of the block, the crank position sensor maybe?? sounds like above trans its coming from

[sx moneypit]

Was your check engine light coming on with the key on engine off?

[sx moneypit]

240 slide-ride , the crank sensor isnt going to make any noise unless its hitting the flywheel and it wont live long like that!

[240-slide-ride]

it was flashing a code 55

BUT

when i did drive the car last time it ran it would randomly come on and shut off along with the led light on ecu, or it would just stay on for a bit

[sx moneypit]

Did you disconnect the ecm and see if the buzzing went away?Key on engine off?

[Doya]

Thanks for your help sx moneypit. It was one of the relays next to my ECU that was buzzing. I'm going to go and get a new one right now.

[sx moneypit]

No problem brother. I hope that takes care of it and you dont have some other problem besides the relay!

[sx moneypit]

240 -slide-ride did you have any luck?Ill try to check this thread tomorrow(i am at my computer at work).If not ill be checking this thread monday morning.Hope ive helped you out.Keep plugging away at it!

[Doya]

You wouldn't happen to know what that relay goes to exactly. I went to a bunch of automotive stores and they said they couldn't help me unless I found out what in went to. You know, like if it was a starter relay or ignition relay, ect.

[sx moneypit]

Nissan calls it the eccs relay,it is the power relay for the ecm.It might be a dealer item only.You might want to try the boneyard, most of them will just about give them away.

[Doya]

Alright thanks

[240-slide-ride]

when i unplug the fuelpump fuse it makes it go away

sooo i pulled a compression test on my car, 120-125-120-125 thats what it pulled up, its consistant but seems a bit low...

[240-slide-ride]

btw i pulled my injectors, none are leaking and they have a good spray pattern

[240-slide-ride]

btw there is a buzzing sound, ive tracked it down to the fuel pump bc when i pull the fuelpump fuse it goes away, BUT my fuel pump is working and pumps gas?!?!?!?

[sx moneypit]

What is your fuel pressure reading? Alldata calls for 34psi.Are you sure the buzzing is from the pump?Is coming from the gas tank?
Modified by sx moneypit at 2:40 PM 11/23/2009

[240-slide-ride]

i wish i could tell you currently i dont have a pressure tester, could possibly a bad regulator or a bad crank position sensor cause this? also my compression is a bit low but i was told that could be bc of my cylinders flooding out but idk about that

[sx moneypit]

Your compression is probably low because your cylinders are washed down.Are you getting spark? Does your check engine light come on key on engine off?In other words is the ecm powering up?

[240-slide-ride]

yes i have spark, and yes the ecu powers up (cel key on engine off, red light on ecu etc)

[sx moneypit]

Are the spark plugs still getting soaked?

[sx moneypit]

Im heading home.Ill check this thread early tomorrow.Good luck!

[sx moneypit]

Any luck 240-slide-ride?

[Doya]

Hey dude, I replaced the relay and I'm still having the same problem. Any suggestions.

[sx moneypit]

Could have a shorted sensor or injector

[sx moneypit]

I am at work now let me dig into it a little more.

[Doya]

The new relay was still buzzing like the old one though.

[triple r]

ok i dont know about the buzzing but someone mentioned wetplugs and mis firing............. take your injectors out of the rail.................look at the bottom o-rings........if they are damaged at all..............replace them..............you can get them at any rubber/gasket place like bowling green rubber, or a fastenall............. this will cause the cylinder to flood at low rpm's if its damaged. if the litle plastic piece on the bottom of the injector is damaged, it will cause fuel to spray on the plug and foul it out....... mostly at high rpm's..........when you put your injectors back in, put some vaseline on the o-rings and the inside of the rail so it wont damage them again..........and pop them in using a sorta twisting turning motion and make sure they are snug before you put the caps onthem........dont use the caps to press them in of you will have bad luck. hope this helps you at all

[Doya]

Ok, I found out that the ECCS relay is tied into the EGI, which has a 7.5A fuse under the engine bay that keeps on blowing whenever I turn the key forward. What does it mean when a fuse keeps on blowing like that.

[240-slide-ride]

sorry guys i was out of town for the holidays

well still no luck so far, im still clueless about when the car did run why there was a red light coming on and off randomly with the check engine light, and the buzzing sound im hearing.....i cant even get the car to start right now

[sx moneypit]

Doya ,if the fuse keeps blowing like that ,you have something that is shorted to ground (injector, sensors or wiring) could even be the ecm.