It was running earlier today but when i got home it was parked for half an hour. The engine turns but wont start!

 

let it cool a while longer, while it's cooling down, check over the engine compartment for obvious items that don't look right(broken connections/wires/hoses/etc)

Relax man, have some patience and take your time, be through with your inspection, there is no reason to scrap the car because it won't start, you have a failed part causing it, you just have to find out what it is..We will help as much as we can..

Patience grasshoppha

 

did you ever do the thing on EC-253?

 

Loose battery/alternator connections/old battery?

Has your radio been acting funky too by any chance?

 

did u fix ur cracked coils yet or no?....

 

Sorry guys i have been very busy today im gonna try to fix the cracked coils tomorrow. Dont know how to run the tests on EC-253. My neighbor said it sounds like its not getting gas?? Any ideas about that one?? Just did the fuel pump,fuel filter, and one of the injectors no more than 2 weeks ago.

 

And im pretty damn sure it has nothing to do with the battery or alternator. I have power through the car. Excuse my french my car is making me very mad but i love my maxima

 

if the CMPS is not sending signal to the ECU, it will not give gas. the CMPS is the only way that the ECU knows if the engine is spinning or not. If it doesn't think the engine is spinning, it will not give it gas.

i'll admit... the test procedure for the CMPS is kinda complicated, compared to some tests i've seen.

at least go do this
http://forums.maxima.org/4871521-post5.html

you have a 2-mode system cuz it's a VE. If it comes back as having an error code, that is, something other than a 55, then you will know what to begin looking at.

if you cannot for the life of you figure out how to do the tests on EC-253... then i still suggest trying a different CMPS cuz nobody else has yet to come up with a part that will shut the tachometer off when the engine loses power, but still have everything else (radio, speedometer, headlights, etc) functioning normally

 

Whats the CMPS??

 

Car will not start now also could this be a result of a bad CMPS???

 

Did you do the work, or a shop?

Please include all recent work done when you first post about a problem with your car.

 

CMPS= CaMshaft Position Sensor

 

Do you have a local junkyard? any maximas there?

 

lemme see if mine will start with it unplugged... hold on


edit:

first time, i cranked it for about 10 seconds and it did absolutely nothing. i waited a second, tried it again, and it did start.... but was misfiring like a ****, and pushing the gas pedal did didn't cause it to rev... it caused it to backfire through the exhaust, and the tachometer kindof fluttered once or twice when i jabbed the gas, but didn't actually have anything to do with RPM. CEL was on also.


keep in mind tho, i don't have the same engine as you

 

When the listing was posted you did it and the recent work done is at the bottom of the first posting sorry for the misunderstanding. I personally did all the work on it and there are many local junkyards but not sure if there are maximas there. What would you like me to look for at these junkyards for my car???

 

No problem, just a heads up.

Ok, did the car run perfectly fine after all the work you done?


Well, lets try to figure out what is wrong before blindly swapping parts.

 

no,it will not start..

This doesn't mean this the cmps is the culprit, please dude, before he spends the money on this SERIOUSLY EXPENSIVE PART ) lets make sure it's not other things maybe related to cracked coils, or his recent work..

A new CMPS is $322

 

No not perfectly fine it had the problem that started this post

 

well i wasn't gonna tell him to buy a brand new one unless he was sure that's what it was..... if he could get his hands on a known-good used one for theap tho, that would let him know if he needed a new one or not. cuz yea, those things are hella expensive.

 

Well then stop harping on it, this part rarely fails on these cars,(hence the $$$ for a new unit) I'm now thinking this has more to do with recent work done, instead of coils or cmps or whatever..

Also, unless he has a U-Pull-It type salvage yard local, most "regular" junkyards will not let you pull any one engine part off of a good engine in their yards, so a used unit may not be an option for him.

 

Ok, now we are getting down to possibly the root of your problem..

Do you smell raw gas when trying to start the car?

 

Yes most of the junkyards around me are u-pull-it but what could i look for since i have no idea?

 

Yes i Smell raw gas under the hood after i have tried to start it but not inside the car

 

I tried to give it gas when i was trying to start it

 

My neighbor said it sounds like its not getting gas when i was trying to start it

 

well for something like that i would suggest finding someone on the .org that has one on a junked VE motor. i don't think aaron is selling any VE parts just yet but of course he would have one... cardana24 should have one as well.

i've come across another car tho that would totally fall on its face for no reason while driving, and sometimes took forever to start. we never managed to figure out why it wouldn't start, but whatever it was, it was causing the injectors not to fire. if he's got a multimeter he can hook it up to one of the injector plugs while trying to start the car, to see if he has any voltage.

 

well if you smell raw gas under the hood after trying to start it, then either you ARE getting gas, or you have a fuel leak and that's where the smell is coming from.

perhaps not getting any spark...

 

what brand injectors did you use? new?/remanufactured? did you replace the injector o'rings with new ones?

Well, you didn't "Flood" it if thats what you are worried about, this is not possible on fuel injected engines.

 

Exactly, you cant diagnose VE issues with a VG, they are two different worlds..The ve will not start period with the cmps unplugged.

 

I only replaced one injector it was a Beck/Arnley it fixed my engine puttering/hesitation

 

Which cylinder # ?

O'rings? new?

 

ok. i sort of figured that was the case since i have a distributor and you guys don't

 

Not sure what the cylinder # was but it was the front left one

 

Orings came on the injector so they were new

 

ok, just for shiits and giggles, go unplug your mass air flow sensor wire harness, then try to start the car.

 

left while facing the car (so, over by the passenger side) would be #2, and left when sitting in the driver's seat (so, over by the driver side) is #6


firewall

1-3-5
-2-4-6

grille

 

ok ill go do that even tho is cold as shiit outside

 

lol, i hear ya..It's chilly here also..

 

It was the left one on passenger side but im going to unplug my MAFS now ill let you guys know what happens

 

E-net mechanicing is rough..



If i was in person this would have taken about 10 minutes.