lkoroush

First off my maxima is bad *** but it has a miss to it and don't know if it fuel injector or coil packs if it has those cause I can't find them

akurtzer57

iTrader: (4)

GXE would be a VG30E which does not have coil packs. With car running pull plug wires one by one to see if notice a change. If do snap it back on quick. Say you pull of number 4 and 3 plug wire and car does not idle any different. Chances are those injectors are bad. In order to test injectrors you need a ohm meter.

tweak

92 would still be the crappy non-weatherproof injector connectors too, right? To get those off there's a little U shaped metal clip that you have to slide out before they can be removed from the injector.

chrome91

iTrader: (1)

VE had coilpacks, VG have cap/rotor. when was the last time the distributor cap, rotor, spark plugs, and wires were replaced?

lkoroush

I just bought new plugs and NGK wires idk about the cap and rotor that's what I'm gonna do next but if tht doesn't fix what next should I look into

chrome91

iTrader: (1)

afterwards i would try replacing the fuel filter and cleaning the MAF, if those and a tuneup dont fix it i would probably look to the injectors

how heavy of a miss is it? just the odd miss or almost like its going to stall out?

tweak

I'd definitely try the method akurtzer57 suggested if you haven't already since it's quick, free, and will tell you if it's a specific cylinder. Mine was running real awful last year and when I did that it narrowed it down to the cylinder that ended up having a bad injector.

lkoroush

Its not a really have miss but you can tell it is missing and it stalls/ hesitates a little when you accelerate an I have not tried that method yet so all I do is unplug each spark wire one by one and how will I know which one it is

lkoroush

And how do you clean the MAF without ruining it

tweak

If the idling changes when you unplug it, then it's not that one. You're looking to see if there's any specific cylinders that don't cause a change when you unplug the wire, which means that one isn't firing.

lkoroush

Ok and if I find one or two that don't change what then

lkoroush

Ok I just went and did that I unplugged from te distributor and 2&6 didn't make a difference when unplugged but 1,3,4,5 made it bog down so now that I narrowed it to 2&6 now what

tweak

You'll want to check the injectors for cylinders 2 and 6 with an ohmmeter (back left and back right if I remember right). It should read fairly low, something a little over 10 ohms I think? 11 to 14? I forget. If it's less or gives a very high / no reading, it's toast.

Or if you have a mechanic's stethoscope you can put it against the injectors to see if they're clicking (compare it to the other injectors).

lkoroush

1,3,5
2,4,6 is how it's set up odd toward back and even toward front and where at on the multimeter setting and where do I put the prongs and I haven't put a new cap or rotor on yet and always with 2,6 missing woul late cause a loss in low end power I have plenty of high end power

lkoroush

An by the way thanks for everyone helpful comments I love my maxima 3G and have a lot planned for it and it only has 170,000 miles

lkoroush

And how do you clean the MAF the right way I know they are kinda fragile

tweak

Right, I had it completely backwards.

I haven't found a good picture to mark it on, but the injectors are right there by where the plug wires go down to the plugs, just under the intake plenum. Look for a metal tube that has 3 electrical connections going to it (the 3 injectors). You'll have to pull out a U shaped locking clip out the bottom of it before the connector will come off (use a small screwdriver to pry it out and be super careful not to lose it, they like to pop off and disappear), then you have the two terminals on the injector you can measure across.

chrome91

iTrader: (1)

you can buy MAF cleaner, usually you spray it lightly about 10 times and then let it dry

lkoroush

What setting on the multimeter is best to use

lkoroush

When I spray the MAF do I have the car running or do I take the MAF of the intake tubbing

akurtzer57

iTrader: (4)

set it to read ohms. Should read 11-12 ish if low bad if high bad if non bad. That simple

lkoroush

Hey thanks a lot again guys much appreciated

lkoroush

I got code 51

Laevateinn

iTrader: (3)

That's the injector circuit. Check the wiring then the injectors afterwards.

lkoroush

And if the wires are good and I can hear all the injectors tick but that doesn't mean there working correctly

maximagician

i once had a set of junk yard spark plug wires,one was close to the valve cover
and almost burnt thru ,replaced them with...a better set of junkyard wires
and double checked the wire routing with more plastic seperators

it is a high voltage v-6 ignition ,same could happen if the plug wires were too close to injector harnesses?

lkoroush

These werent cheap wires I paid 150 for them

lkoroush

And maxi magician what are you even talkin about you make no sense

maximo018

iTrader: (6)

The current from the wires touching the injector harness could also give you issues. Something that usually happens over a period of time, but could chafe through and arc off and cause disruption of injector performance. Thats what he was trying to slide your way.