so ive had this for a while and figure maybe something is wrong...

what happens is when i start the max, itll just try and try to start...i have to let it go at the exact time for it to start...like something is getting stuck?? maybe?? idk...its really weird. and when i do let go it catches at a very low rpm...around 250rpm very roughly and then is fine.

anyone else have this problem?

i do have check engine lights...
evap and O2 sensor after cat

but ive had these for a while and the starting problem is pretty recent...after my last oil change. is this just coincidence?

anyways...any help is appreciated.

 

it could be your plugs and coils not sure
i am just learing

 

well i dont think its the plugs or coils since its not rough when running. it only starts in a rough manner then once its started...its normal.

 

i kinda have the same problem when my car sits for a while it does that and sometimes doesn't start right away. put it in a new starter in july but still was doing it right after that??? any issues???

 

Check your fuel pressure. I had a similar problem on another car. The car would take a long time to crank, start rough and then run fine. I put a fuel pressure gauge on it and found that the system was bleeding down pressure. As soon as the fuel pressure built up each time, the engine would start and run fine. The possibilities for losing fuel pressure are leaking through a fuel injector, leak by the fuel pressure regulator or external leaks. The latter is easy to check by smell. A leaking through fuel injector would lead to a very rich condition in one cylinder which you would probably notice on startup.

Just my .02

Rene

 

What about the fuel pump itself?

 

okay i havent checked my fuel pressure but i did look for leaks...there arent any.

as far as fuel leaking through an injector...how would i know if this is happening?? you mention that i should know this at start up??

another thing i noticed if i kept on cranking the car is that i think it back fires. My dad was with me and he said it backfired. the engine shakes really roughly and backfired.

i also just checked my CEL and i came up with a 10 08 which is something with the EVAP. for this i have checked the fuse and its fine. i have not checked if the valve is working right.

 

Have you had any tranny work done recently?

It sounds similer to the problem I had until I grounded the starter.

 

If you had an injector leaking through, you should get black smoke on startup. The fuel pump itself is a possibility but unlikeley if the engine runs fine after it starts. A fuel pump problem would show up as low power at high throttle position/high rpm. I don't think that the evap code would be causing the problem, but I can't back that up. I think that you should look into your fuel pressure. I haven't ever done it on my maxima, but on most cars there is a test port. If there isn't one, you can just tee into one of the rubber fuel lines. As soon as you turn the key to start the car, the fuel pressure should come up to normal. If it does, then it's time to look elsewhere. If it doesn't, start seaching for the internal leak. The last time I saw this problem, I could actually hear the fuel leaking by the FPR. You mentioned that you heard the car backfire. If you are talking about an actual backfire through the intake manifold, it sounds like a timing issue. The engine running normally after it starts kind of rules timing out.

Good luck,

Rene

 

okay i still havent checked the fuel pressure...i dont know how to. ill do that this weekend. does anyone know how to?

now ive been really trying to listen closely every time i start the max and im positive it backfired back into the intake manifold. It was a popping sound which sounded as if it originated on the top part of the engine.

also i had bypassed the knock sensor since its messed up and decided to reconnect it. now i have hesitation sometimes in low rpm's from a stop as if its low on power. could this be linked to the starting problem?

 

anyone have any ideas?

need help!

 

i would check for a possible fuel pressure issue first off. Second, you said you "bypassed" the knock sensor, that may be your problem. If im correct, the knock sensor is designed to sense any abnormal vibrations (knocks) and then tells your on board computer to adjust the timing accordingly. I would get a new sensor in there asap

 

http://forums.maxima.org/showpost.ph...85&postcount=8

 

no i havent had any tranny work done. but ill try and put an additional ground on the starter. hopefully thatll work.

so plans this weekend...
1. add ground to starter
2. check fuel pressure