idles real bad poor power.poor gas milege

[juanM]

how can i verify if my car is running on all 6 cylinders? im having idling problems i have no passing power on freeways. i can drive at 80mph
but i cant pass anyone. sume times i have to let go of the gas and re apply my feet on it quick and car picks up for a bit...

[evildky]

step 1 check the ecu for codes
step 2 verify the car is running on all 6 cylinders *

*to verify the car is runing on all 6 you unplug each cop 1 at a time whel the car idles, each cop you unplug should cause the idle to drop or the car to die, if you find 1 cylinder where the idel does nto change when you unplug that cop you have identified the problem cylinder

let us know what you find and we'll help you narrow down the problem

[juanM]

ran ecu and no error codes found.
what is the cop? sorrryyyyyy

[evildky]

COP = Coil On Plug

the coil packs on each spark plug, unplug them 1 at a time

[juanM]

so ived cleaned all the electrical connectors. alot of them were bluish and dirty. i cleaned them now. but im still having same issue.
when i start the car in the morning it goes up 1000rpms then drops quickly down to 500rpms,also if i give it gas and hold it lets say at 2000rpms it drop in rpms slowly. like if i have a vacuum leak. ived checked them all and they are all ok...some are hard to get too.im going to check the valves inside wheel whells. air mas sensor is good i remove the conector car turned off.....

i saw that on my brake booster. were the master cylinder bolts to the booster theres a water/brown stain like something leaking from there

i also cleaned the connectors on the injectors.. the injectors on the passenger side when i tested them my meter wouldnt read anything..... i test the driver side and right away i was get 13 in ohms or 14.1.. the other injectors wouldnt give anything when i put the meter leads on them.... maybe cus the connectors were bluish also. but i was testing the very tip of the injector connectors could they be bad?

help me guys? i know about mechanic stuff. but this one is beating me. and wasting gas money on it cus it burns it quick i get about 70 iles on full tank, i dont want to sell the car cus of this... ive just go it back from the shop not to long ago.
but it was idling weird up and down. but it wouldnt turn off. my engine never even shookwhile idling ,now it does and it burning lean lean. exhaust smell like pure gas

[DCaff300ZX]

Do the power balance test evil describes above, it will locate the cylinder(s) where you are having trouble- THIS IS JOB #1.
Once you locate the problem cylinder(s) then we can help further with things to test, as right now you are possibly making your troubles worse by checking things out of order and also potentially causing another issue or complicating your current one.
The things you have done are good to do, but are best done after solving an issue so that you have a baseline to start from and knowledge of just what you changed when/if any further issue develops, as will potentially happen with our 20 year old engines.
Once you can tell us which cylinders you are having problems with, do anything evil says and you should be on your way to at least knowing and understanding your problem...

[evildky]

step 1 check the ecu for codes
step 2 verify the car is running on all 6 cylinders *

*to verify the car is runing on all 6 you unplug each cop 1 at a time whel the car idles, each cop you unplug should cause the idle to drop or the car to die, if you find 1 cylinder where the idel does nto change when you unplug that cop you have identified the problem cylinder

let us know what you find and we'll help you narrow down the problem