http://www.nicoclub.com/zerothread?id=90836
i posted that in the general section. just wanted to get some responses from the guys that roam this part of the forums. Car is a 93 240sx. It occurs in fourth or fifth gear. Feels like the governor trips in and then it dies. Rpms range from 2300-3200. No check engine light. Could it be bad gas? If so wouldnt it sputter? What about the fuel pump relay? What are the side effects of that going bad? I think the best things ive heard so far are the MAF, and coolant temp sensor. Help please as this is my daily driver
Help Car shuts off randomly
-
s13sr20chris
- Posts: 4148
- Joined: Tue Jun 10, 2003 9:32 am
- Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
- Contact:
Re: Help Car shuts off randomly (Jookmasta)
we really need to know if you are loosing spark, fuel, or both. is it only in 4th and 5th? if so it may be a speedo ciruit prob.
no check engine light and i check for spark from the coil and there is spark. fuel line feels firm but i cant confirm fuel 100%. fuel pump fuse and relay are in tact tho. thing is day the car died completely. engine will turn over and crank but no go. before it did die, i left the car in neutral and i kept the revs up near 3000, and then it shut off. car wasnt moving tho.
Thing is is that now when i crank the engine, there is no lights on the dash. none of the oil light, seatbelt light, etc. windows also wont roll up. I looked under the dash and i found a loose gray and yellow wire. cant find what it was attached to but it wasnt cut cleanly so it seems as if it broke off. any idea what that could be or any other suggestions?
Thing is is that now when i crank the engine, there is no lights on the dash. none of the oil light, seatbelt light, etc. windows also wont roll up. I looked under the dash and i found a loose gray and yellow wire. cant find what it was attached to but it wasnt cut cleanly so it seems as if it broke off. any idea what that could be or any other suggestions?
-
s13sr20chris
- Posts: 4148
- Joined: Tue Jun 10, 2003 9:32 am
- Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
- Contact:
Re: (Jookmasta)
i am not sure about your wire. check the plugs. if you have alot of electrical probs its possible that is causing your car not to start. so you have fuel eh? spray a bunch of carb cleaner in the intake manifold and try to run it off of that. if that works, bingo, fuel delivery issue. certain electrical probs will cause injectors to not fire.
just wanted to update ya. we checked the fuel tonite and none was coming thru the hose when the ignition was in the on position. didnt bother gettin the carb cleaner cuz of that.
next thing is we tore down the dash underneath the steering and checked every wire with a test light. everything was receiving power. we then checked the connectors on the terminals and those were also fine. we then checked the fuses in the fuse box by the battery and everything was fine except the fuel pump fuse and egi pump relay. they werent blown but they werent receiving power. this means my pump isnt receiving power. any suggestions?
tomorrow im gonna check on the ecu so thats my next step. im getting another relay and some fuses on friday so that i can switch em out and see if anything works.
next thing is we tore down the dash underneath the steering and checked every wire with a test light. everything was receiving power. we then checked the connectors on the terminals and those were also fine. we then checked the fuses in the fuse box by the battery and everything was fine except the fuel pump fuse and egi pump relay. they werent blown but they werent receiving power. this means my pump isnt receiving power. any suggestions?
tomorrow im gonna check on the ecu so thats my next step. im getting another relay and some fuses on friday so that i can switch em out and see if anything works.
-
s13sr20chris
- Posts: 4148
- Joined: Tue Jun 10, 2003 9:32 am
- Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
- Contact:
-
s13sr20chris
- Posts: 4148
- Joined: Tue Jun 10, 2003 9:32 am
- Car: '89 Nissan S13 w/redtop running 13psi and not leaking fuel anymore
- Contact:
Re: (s13sr20chris)
that diagram shows where your fuse and fusible link are to provide power to the fuel pump relay. check those and get back to me. getting power to the fuel pump is easy. if nothing else its a piece of cake just to build a whole new circuit for the fuel pump. i have considered doing that just to minimize voltage drop to my pump(on my 240).
Well i first want to say that I GREATLY APPRECIATE all of the posts concerning my problem. its amazing to see how helpful a group of car owners that are infatuated with the nissan product can help a guy out in rough times. Now to the rest of the post which will probably end off this thread. So on wednesday my electric guy checked all the wires underneath the dash and all the fuses and relays in the engine bay. Nothing came back conclusive except that the fuel pump fuse and egi pump relay were not receiving power. Everything else in the engine bay fuse box was receiving power.
So we figured we get some other relays and try it on friday (today). So he comes back today and we try out the relays and still no go. He then proceeds to check again underneath the dash and he starts to test the wires from the alarm. Turns out the alarm was receiving power from the ecu but the alarm wasnt transferring it to the dash. ( For general knowledge, the dash lights receive their info from the ecu. My alarm plays the middle man b/w the dash and ecu. Another thing is that my alarm is kinda special since it cuts the fuel, the starter, and the ignition.) Anyways, so we ended up using another piece of wire to bypass the alarm. We tried that and bam! dash lights turning on and everything back to normal. We start the car and bam! the beautiful sound of my KA once more.
Moral of the story is double check all your alarm wires. I really dont see how one wire could have caused all this trouble but sometimes thats how it is. Apparantly the one bad wire caused all this mess and it seems that the cause of it going bad is still unknown. Good news is that everything is back to normal. If anyone needs any help with anything similar to this, dont hesistate to email me at [email protected]
Thanks again for the help
So we figured we get some other relays and try it on friday (today). So he comes back today and we try out the relays and still no go. He then proceeds to check again underneath the dash and he starts to test the wires from the alarm. Turns out the alarm was receiving power from the ecu but the alarm wasnt transferring it to the dash. ( For general knowledge, the dash lights receive their info from the ecu. My alarm plays the middle man b/w the dash and ecu. Another thing is that my alarm is kinda special since it cuts the fuel, the starter, and the ignition.) Anyways, so we ended up using another piece of wire to bypass the alarm. We tried that and bam! dash lights turning on and everything back to normal. We start the car and bam! the beautiful sound of my KA once more.
Moral of the story is double check all your alarm wires. I really dont see how one wire could have caused all this trouble but sometimes thats how it is. Apparantly the one bad wire caused all this mess and it seems that the cause of it going bad is still unknown. Good news is that everything is back to normal. If anyone needs any help with anything similar to this, dont hesistate to email me at [email protected]
Thanks again for the help