S1cTech

Long story short. I got no job at the moment. I am near broke, but my maxi is running like poo at warm idle, gas sucks at 15-16mpg and I need to give it a tune up. It will be coming on 3 years since I changed the plugs but I never changed the coils. I did gas filters last year. (had a 350z one and just ended up going back to maxima one there isn't a difference)Other than a rough idle when I put it into N preparing for a stop light the RPMS rip to a nice 300 RPM and back up. I already did IACV valve and YES brand new gaskets about 2 years ago. I believe I have a misfire because when I double tap the throttle on the highway. I get the stutter hesitation. Its really annoying...


So with that said. She has 230k miles on her. Engine has been MINT for the 7 years I owned her. Except for the things about it including the tranni but w.e ever the case. I just want to know the cheapest way I can go about changing all coils and I think I will be ok with just putting in NGK platinum again. I just want to get this idle issue out of the way. I personally cleaned the EGR valve too like 3 years ago. I do get some codes and I am doing the resister mod for the knock sensor but thats because I was tired of replacing one everytime. I went through 3 sensors since than but I know for a fact that has nothing to do with idle and misfires especially with the resister mod on.

I saw OEM nissans are $100 something each. Can't do that, but I also don't want junk either. I heard they were some for $100 a 6 set but I heard to stay away from those as well as they can melt. I am looking for anything other than less of at least $250 or so dollars for just coils. I also know I may need an o2 sensor, but code doesn't really show which one, which sucks. Its confusing. I know that will improve gas mileage too.



Thanks!

Mr.A32ftw

iTrader: (12)

junkyard
classifieds

njmaxseltd

iTrader: (19)

What is this double tap the throttle? You 5 speed or auto tranny?

Replacing all the coils because you "think" you have a misfire is just stupid. That fact that you want to do this and don't have any $$ is even worse.

TROUBLESHOOT before you start throwing parts at it. A misfire can come from a coil, fuel injector, spark plug or internal engine issue.

Is the idle rough at all times? Do you feel a vibration under load from a misfire? Have you pulled the spark plugs and looked at them for signs of a misfire? If you have a rough idle, pull the electrical connection from one coil at a time until you find the one that doesn't make a difference. If you can find that, then work on that cylinder.

S1cTech

5 speed so it makes it even easier with a direct connection to the engine and all. I pretty much know it has to be a coil. They are old and I haven't touched them since owning the car so I have no doubts it is one. I also had this misfire 3 years ago but it wasn't that big of deal cause idle was fine and my car didn't shutter. I need motor mounts (again too) but I put crappy ebay ones in last time. I wanna squeeze as much life out of this car as I can before it goes to car heaven.

sonicrunch

I agree with junkyard. I just changed my plugs, and the ONE coil pack I replaced with an auto parts store coil was stuck and ripped. The coil was maybe two years old. All the other OE coil (14 YEARS OLD; 262K miles!) popped right out. No problem.

Imma replace the crappy auto parts store coil with a OEM junkyard unit.

S1cTech

Not sure If I would ever touch junkyard coils but honestly it seems like a good idea at this point haha now the thing is. If they haven't been stripped out by now I think the other issue is a lot of cars don't have a hood and the coils just sit soaking in the rain which sucks.

ShocknAwe

iTrader: (3)

Yea you have to wait until a car is new on the lot and then ****** em up. Most people try to use a screw driver and strip the screw so just bring an 8mm and you can get the ones other people cant

Shift_A32B

iTrader: (14)

Only options are..

1) New from Nissan
2) Junkyard
3) Maxima.org

Don't bother with any other coil...or you'll get a P1320 IIRC.

* I would start with the small stuff; NGK spark plugs, fuel filter, clean out the IACV, clean the TB, clean the EGR tube, etc.

ShocknAwe

iTrader: (3)

I can go to the JY likely tomorrow and grab 3 front and 3 rears off of a car that is a few days old. Also has the rear Infiniti mat that goes over the tunnel.....

S1cTech

No offense but did you read my original post at all? lol

Shift_A32B

iTrader: (14)

In terms of maintenance, you said you did plugs 3 years, IACV 2 years and fuel filter 1 year ago. I doesn't hurt to do it again. I know you're broke but you can do the free stuff which is cleaning the IACV, TB, EGR tube and MAF sensor.
Perhaps replace the air filter if you haven't.

You said you wanted options to replace your ignition coils...well with your budget, your choice is very limited.

I'm also saving you from a headache incase you decide to get aftermarket ignition coils. Trying to be cheap on ignition coils will result in a more expensive bill.

There isn't very much you can do with your budget.

carsnwomen91

What's wrong with junkyard coils?? My rear coils from a dek are almost 180k miles old still fine and they were off a junker, then used by a previous oovi'er and now myself. It takes under 5 mins to get all 6 and u can stuff them in your socks and pockets and walk out. OEM only for maf and coils is what I learned so far

then check one coil at a time by unplugging it and seeing a difference in your idle quality. Replace the one(s) that DON'T affect idle.

also why are you not using ngk platinum from the start?

MAXIMA_STYLE

iTrader: (21)

junkyard coils are the same as buying from the org... i have 2 junkyard coils in my 99 no issues at all... id rather spend 50 on used coils than 100 on new aftermarket trash coils.... contact maxfever or maxima_joe they sell alot of parts seeing they part out cars....

S1cTech

cool thanks

njmaxseltd

iTrader: (19)

Yup, great troubleshooting there. You know my car is old too and throws a downstream o2 code every now and then. I bet it's the fuel injectors because there old and I've never touched them.

The invisible nonexistent misfire syndrome. We're familiar with that on here...

Double tap throttle + bad motor mounts = ? [insert jeopardy theme]

I'm not in a good mood today, can ya tell?

S1cTech

ya your suffering from dbag syndrome

Nealoc187

iTrader: (23)

how is it that every thread you create makes you seem more helpless than the last? wow...

S1cTech

huh?

CichlidKid

iTrader: (1)

lel

Seriously though, if you believe your coilpacks are giving you a 'rough idle' (doubt it), then drive to a junk yard and have your pick. Remember to take packs out of a wrecked car (the car was probably running when it got hit).

Simple.

eddie982

iTrader: (10)

Unless the car was hit while it was parked