chadbobb

Well im gonna change out my spark plugs because i bought my 4runner used in april. Not sure when they were last changed. Also i have been having a fuel smell coming out of my exhaust when i slam on the gas hard. (problem stated partly in this thread https://www.yotatech.com/forums/f2/glow-packs-cat-convertor-problem-97203/) To make the story short for those of you who don't want to read that thread, it smells funny and i don't want to burn up my cat convertor.

So which of these would work? Will any of them? A friend of mine said i need to get the correct heat range, but i don't know what to get. Searching didn't help either, and i don't have the manual that all of thats listed in.
http://replacement.autopartswarehous...20Plug&dp=true

Im thinking maybe i need to get one that burns hotter? Would that help burn the fuel that i smell when i slam on the gas hard?

Thanks in advance

Elton

go to ur local dealer grab a set of denso's

rocket

iTrader: (1)

What kind of plugs do you have now?

chadbobb

I think when i pulled one to look at it the other day it was denso. Is that a good brand?

Elton

yes those are factory plugs.... now look at the plug wires they should have a date stamp if the stock ones

chadbobb

you mean the wires could be stock?(even after its 10th birthday?) So I am thinking of changing those too. I would really like to not have to buy them from our local dealer. If that is the only safe way to do it then ok. But if i can order then and save a little money for same/better product why not go for it.

Elton

got mine at www.sparkplugs.com for $37 shipped just look at urs it should say 96 or something mine had 134k before i changed them there was nothing wrong with them but it was time for a basic tuneup

91TPU

go with a set new set of denso's or ngk's. from all my experience they are the best...if you wanna upgrade your plug, switch from the stock platinums to a iriduim, your gonna pay 12 a plug but thier nice. if not get some platinums for like 5 or 6 a plug, they might even be cheaper.

and ditch your plug wires if they are stock, thier probably absorbing moisture and affecting your spark...thats y im replacing mine.

chadbobb

See the thign is, even when i go to sparkplugs.com and type in all of the stuff for a 96 4runner, i get 3 classes. Premium, super, and regular. Regular denso at $2.24 each all the way up to 11.99 for the best in the premium section in the denso brand. I am thinking maybe get the cheaper permium denso($7.16 each), or a different brand a little bit cheaper in the super section.

I am just trying to find something that will illiminate the fuel in my exhaust problem. It runs fine. I want to try a few cheap fixes before repalcing oxygen sensors and buying a code reading, buying new coil packs etc....

And above all i don't want to damage my engine by putting in the wrong spark plugs designed to burn better but end up hurting something

Bob_98SR5

chad,

just contact strap22 and just ask him for stock toyota spark plugs and wire set for your 96 4runner. done deal.

bob

MTL_4runner

Ditto on that or just go to your local Toyota dealer and ask for replacement plugs and wires for your year/model truck.
......no big deal there.

chadbobb

Alright. So i take it different spark plugs probably won't help my fuel problem.....

MTL_4runner

No, changing the plug's heat range will do nothing for the fact that you are smelling unburned fuel.
Replace the plugs with stock ones and see if you still smell fuel.....if so post back and we'll help sort it out.

mastacox

When you floor the pedal (actually, anything over about 80%), your engine dumps more fuel into the cylinder than can be burned to make maximum power (search "ECU Open Loop" if you don't know what I'm talking about). This could account for the fuel smell after "smashing" on the gas.

My suggestion, if the exhaust smells normal under conservative driving conditions, don't worry about it. Do you have any CEL codes, specifically for misfires?

chadbobb

I don't know. I wish i had a place around here that i could take it and get my codes read. I do, but everyone around here will probably charge me close to $100. For that i could buy a decent computer that connects to my laptop. If it comes down to it i will buy a obdII or whatever its called coder reader. I don't think it missfires.

For now i will replace the sparkplugs and wires. Ill let everyone know how it works.

nick-m

I'm guessing that the 4Runner doesn't need a multiground plug, yes? Sorry, complete novice here.

MTL_4runner

It is a very wise investment to make and at $100 per code reading, it would only take one trip to the garage to pay for the equipment to do it yourself. I don't think it takes a rocket scientist to figure that one out. Let us know how it goes after you do the plugs and wires.

MTL_4runner

Yes, the 3.4L uses a dual electrode NGK or Denso plug.

Elton

cant you just use the the code reader a few times and then send it back and get a refund ?

chadbobb

I could but that would be dishonest. I will just buy the one i talked about in the thread i posted up top.
(if the plugs and wires don't help at all)