Injector problem?
 

I have a popping in the sixth cylinder and when I disconnect the injector it goes away. Does this mean the injector is bad or maybe the plug?

Well... you could always do what I told you to do in your other thread: Check the spark plug tips to see what's going on. Help me help you. :D

Is the sparkplug wet? With fuel? Oil?
Dry? Is it white? Black?

Let's try simple...

http://www.aa1car.com/library/reading_spark_plugs.jpg

if i hadn't lost the 13/16 wrench i would have but I was wondering if this had happened to anyone before and what the outcome was

Maybe a sparkplug... maybe a sparkplug wire... maybe an injector... maybe a sticky valve...

Though by disconnecting an injector, it should lower the rpm and lose power.

when i disconnect it it doesn't change much, but it runs prefect under 50% plus acceleration...i checked all the plugs regapped them and adjusted the tps today runs a little better but still the popping and also a brand new fuel pump which did help...I mean its only a problem at idle and constant rpms under about 2500...cuz it still ran a 16.01 bone stock earlier tonight..i just think the injector doesn't put enough into the 6th cylinder unless the fuel pump is forcing it through...it sounds almost like it has a cam the way its missing and if i didn't hear that popping i would think it did

well just fixed most of the problem...the p.o. had two of the plug wires switched...still a very small miss and i think that it is the injector because i cleaned and adjusted the afm today and it is doing fine except for the small miss

yeah... those darn switched spark plug wires! :D

yea the guy who had it had just replaced the wires and i was dumb enough not to check behind him

OK another question. I want to replace all of my injectors. What size injectors (cc rating) should i get to run 10 psi on a z31 ecu? I want to go aftermarket.

what equipment would i need to change spark plugs on a 280zx 82NT?? I seen them, but do not know what they are called?

spark plugs? well your going to need an engine hoist, sledge hammer, a pair of pliers, a stethoscope, some KY jelly, some matches, and a mazda miata...



or you could just use a spark plug socket... or even a regular deep well socket if your desperate....


EDIT**** make that 2 mazda miatas and "for her pleasure" KY jelly... noob mistake on my part :P

haha nice yea just screw the olde ones out put some anti seize on the new ones and screw em in...oh yea and make sure they are gapped right.

i see you typed "how to change my spark plugs" into the googles and got your answer... its that kind of self motivation that keeps this place going... :023:

haha nah just common sense

yeah, i did that. just wanted to be sure coz this ones my first and everything I do is gonna be the first time. I dont even have a bl00dy wrench yet :P . would i be able to purchase one of those plug gappers from the auto store?? the ones that got the measurement with diff thickness like feelers, so u can get the right gap. saw one of em in a youtube video

yeah you can get them at the counter of most auto parts stores... i have one that's got feeler gauges AND spark plug gappers... you could say im ballin', and you wouldn't be lying :P lol