adc97383

Hi -I've been scanning the forums looking for pros and cons to the various iginition wire sets and I'm not finding exactly what I'm curious about.

I have 203K miles on my 99 Tacoma, V6, 4x4. I just put new NGK plugs in and now it runs rough, so I suspect the plug wires. The Belden's have lifetime warranty, NGK and Denso have 1 year warranty; all are about the same price. Does anyone have any personal experience with either of these brands? Any good, bad, or ugly experiences? I don't need new coils, and the dealer won't sell me just the boots for cyl 2, 4, and 6, so I figured I go with an aftermarket OEM because I can get the 3-wire set and boots for the passenger side separately.

Any advice you can provide is appreciated. I don't care about the $$, just want the best stuff on my rig.
Thx

Elton

ngk's all the way and did you use dual ground spark plugs ?

http://www.amazon.com/NGK-TE66-Wire-Set/dp/B000CJ8DC6

rworegon

OEM Denso is the best stuff, IMO, then NGK and no other brand is even on my list for the 5vz-fe.

Elton

ya you can get a set of denso wires for a little more but ive never had any issues with the ngk wires

dewiseman

x2 on OEM, they have lasted way longer than any other wire I have ever used.

adc97383

Thanks for the hits...I don't know if they are double grounded plugs, but they have two prongs if that makes any sense.

So nobody has used the Belden brand? How long does the Denso and NGK usually last you guys? I'm hoping for 100K or better.

Elton

ya the plugs u got are fine denso ngk wires will easily go over 100k ... toyota's like ngk or denso ignition stuff the best anything else causes problems

TheDurk

OEM's (at least on 4Runners) were not Denso, they were Sumitomo. They had the year of manufacture on the insulation. Just because the dealer in this country sells something, doesn't make it OEM. Batteries are another example; OEM was Panasonic--the dealer sells something else.

I have 60K on my NGK's and I have no complaint.

J2F42C

I am presently using the Densos at the moment; my original OEM Sumitomos were OK but I was able to pick up the Densos for $10. Idle is now a little smoother, but the wires are thinner. I'd go with the NGKs if I was doing it all over again.

logansrunner

I put the right brand, wrong model plugs in and had issues immediately. I know wires make less difference, but I would stick to the closest you can get to OEM to match the plugs.

99silverunner

I had a set of belden wires on my 5vz-fe in a 98 4runner and I was running e3 plugs and never had any trouble

On my current 99 4runner I'm running duralast plug wires (lifetime warranty and easy to get) and e3 plugs, runs as good or better than the 98 did

Discombobulated

OEM!! Got my truck form the original owner and the wires still had 91 on them never been changed and it ran like a top!! But I changed them anyway.

ksti

I wonder what disclaimer and restrictions (hidden) that comes with lifetime warranty plug wires.

suncomb1

I run NGK plugs and Taylor Spiro Pro wires on my truck. I have run the Taylors on my Street Rods, Customs and my truck for over 25 years and never had any problems with them. I buy my wire sets through Summit.

DRCOFFEE

I've replaced my wires with the NGK set and it runs good. You may have a defective set. Also decided to try a different spark plug today. I like the concept of "needle to needle" SIP plugs. The Denso TT platinum plugs test out with faster sparks and less quenching than copper plugs. So what the heck, it can't hurt to run them for a while. Currently I'm getting about 17 MPG. I'll run a few tanks of gas through it and see if there is any improvement. They can't cancel my warranty, right? 162,000 miles and still burning clean.

Denso TT video

The PO had Bosch quads in it and it ran terribly. Then it got 13.8 mpg.

I learned something new today. Denso holds the patents on iridium plugs.

TheOriginal

Hi,

This Denso TT platinum plugs can be used on my 4Runner 1998 SR5 V6 4WD?


Thanks,

DRCOFFEE

I just put them in yesterday. If you can wait a few weeks I'll follow up with MPG with these new plugs. So far, I'm happy with them.

DRCOFFEE

This is why I'm moving to double platinum or Iridium. These plugs have only 71,000 miles and the ground electrodes are melted away. Technology has changed and hopefully I can improve on what it originally came with.

Chimpy

Try these Advanced Auto Parts #s: NGK BKR5EKB-11 plugs
NGK 4412 Wires
I put these on my 2001 T4R and it made a huge difference.Of course I was horrified to see that the PO had used Champion single electrode plugs and some cheap brand of wires. CHUMPions are only good in lawnmowers and weedeaters.

DRCOFFEE

So I was averaging 17 MPG (16.7 to 17.5 mpg) with NGK iridiums in for the past 3 months. I have run a full tank of gas now with the Denso TT plugs and the it gave me 18.4 MPG. What is that, 8% bump in mileage? or in dollar terms, it saves me $4.20 a fillup. I didn't reset the computer so it may take a few more fillups to get a good idea of actual MPG.

These numbers are all suburban type local driving.

FYI: I know they say to not gap these plugs but they came set at .036". I set mine all to .044". When you gap them, just don't leverage against the center electrode.

This is the tool I use to open the gap. The opening at the end is to widen the gap without levering against the center electrode.