ChrisCheezer

-Ok first off on start up from cold, Black smoke comes fromt he tailpipe. after about a min. it goes away,
-my idel is very weak
-when the RPMs are low the car jumps around (shakes) and there is a greAT loss of power.

i was searching around and looking for answers and i think its my fuel injectors... can any one tell me what i should do.... if i go to "pep boys" and have them clean them do you think this will fix the problem?

-PLZZZZZZZ help im going there today and i need to know if it is the injectors... or im gonig to go there making sounds to them and and see if they can help... but i trust the max.org over the pep boys ppl

thanx

RosenKen

Sounds fuel related to me from your description- black smoke from the tailpipe is usually a VERY rich fuel mixture. How does it drive when it's warm? You probably have a leaky fuel injector or something to that effect. Fuel injector replacement isn't that bad. Cleaning it will not help. DON'T go to Pep Boys, they are morons. Go to a reputable shop around the area, try an import car specialist first. Just try looking in the yellow pages for a shop and call around. Good luck.

N34JZ

iTrader: (1)

(loss of power) not the black smoke and I needed a disributer and new plugs and wires, but I think you need new injectors.

Jeff92se

iTrader: (82)

Description too vague. Could be any one of about 15 things.

ChrisCheezer

ok when i first press the gass (from a stop) the the RPMs move up but at about 1000 there is now power and the car jumps.. if i go to the dealer would they help me.. to get there i have to drive about 1 1/2 hours to NJ will this hurt my car?

cleaning all the injectors wont help at all?????? then whats the point of getting them cleaned.?

thanx for all your help

Jeff92se

iTrader: (82)

What is the complete tune up history on the car so far?

RosenKen

Cleaning the injectors don't fix bad injectors. It's like cleaning your fingernails. You don't have to do it, but if you want to avoid fungus and crap, you should. You don't have to clean fuel injectors, but it keeps them a bit healthier and helps the engine run a bit smoother (only if they are dirty).

DanNY

iTrader: (14)

leaking valve seals?

medic

cleaning your injectors would be like washing your car after you've been in an accident. sure, cleaning might make it look better, but you have to get some items replaced to get to back to the correct operation.

Did Pep Boys tell you to clean the injectors? Sounds like they just want to get you in there to do some simple stuff and then when that deosn't fix it hit you up for more.


Btw, where do you live that the closest Nissan dealerhsip is 1.5 hours away in NJ?

memphis92se

have you done a compression check one the motor you might have a blown ring or your valves might be sticky this happened on another car i had (not a maxima) but that was my problem
Rane

bill99gxe

iTrader: (1)

I don't know much about cars, but I do have 10 years experience with 3rd gens.


Here is my guess:

A) A fuel injector/fuel injectors is/are bad, causing your ECU to adjust rich, which has caused:

B) Your O2 sensor to become fouled due to the extra burning of fuel and has rendered it useless.


The fun part is trying to figure out which injector(s) need replacing. If you are a home mechanic, I recommend doing them all as these are notorious for failure on the 89 to 91 models.....

You are probably beyond simply cleaning them since you have nice black smoke coming out of your pipe (another indicator of a fuel delivery problem).









BTW, Pep Boys will screw you over.

ChrisCheezer

damn ... i dont have that much money... new injectors are expencive right? i have a 90se so would i have to replace them all??? were can i go to find out what injectors are/bad/dirty/clogged/sticky whatever!!!!!!!! OMG this makes me soo mad



plzzzzzz AIM me at:ChrisCheezer
i need some info asap

DA-MAX

iTrader: (10)

when was your last tune up???

ChrisCheezer

there is a tube commming from the intake it was broken... so i got a new piece. all better thanx for all the help anyway