Underpowered

[SWAMPER]

  Guys I own a 94 4Runner V6 31 M/T's pretty much everything else is stock when I first got it, it ran good lately Ive expericed  a hefty amount of power loss...it takes me for ever just to pull up to 60 and when going up a hill tha is not steep at all its almost as if I let go of the accelerator...it also shakes a bit and my idle speed went from 1000 rpm's to 500...any info would be greatly apprciated guys thank you very much 

[84runner]

I think you should do a fuel service on it to clean out you injectors and things 

[SWAMPER]

I think I found out what it was...Im running on 5 cyl's instead of 6 one sparkplug is proly wet...I already bought the new sparkplugs (Bosh platinum) and as soon as I install the new plugs    I will let you guys know 

[Skinny_Pedal]

i had the same problem but it was a plug wire. i have used those bosch plugs before and they suck. the  prongs werent even firing. if i were u i would return them and buy your basic ngk v-power. they were cheap and work great. with the money saved u could buy a cap and rotor. if i were u i would als replace the plug wires as well.

[Prismo]

I would also second the NGK's. I had problems with the Bosch plugs also & replaced them after 10k.

[yotaboy79]

NGK is the only way to go in my book never used any thing different in motorcycle/quad/truck ect..... and i never will

[brainlessfool]

 bosch     NGK 

[SWAMPER]

guys....I may sound like an Idiot...but whats NGK? 

[WHITE_TRASH]

Ngk is a brand of sparkplug.  I believe they are origional equipment in yotas

[Brian83]

i run $1 champions and i like em

[SWAMPER]

Oh yeah well...this one time I made my own plugs...after I turned the ignition I woke up 6 months later on a hospital bed!!! Beat that!!! 

[84runner]

Denso plugs are stock equipment on Older yotas like my 84

[BigMike]

I've never liked platinums.. Try the NGK Gold Palladium plugs. Excellent Plugs.

[SWAMPER]

Good Deal guys thanks a bunch for the info Ill keep you posted to see what happens.....One other lil bug...its raining over here in SA and my wipers wont turn off...even if the lever is in off...that would only happen when I would go into deep puddles and splash but it I havent done that in a while ! 

[84runner]

Your relay or switch

[BigMike]

Here's the NGK Gold Palladium plugs featured on one of my super old webpages:

http://bigmike.marlincrawler.com/stage1/engine/ngk/index.html



They have a really small electrode that can only be beaten with Iridums - which is what im using now but expensive $$

BigMike

[Brian83]

Iridiums are stock on new toyotas now aren't they?

[SWAMPER]

Hey Mike...who is big...I went to that link you put on and it said you gap'd your plugs at 0.048 and got good results...could I do that too and have good results?

[BigMike]

Hmmmmm............... I am not sure if your ignition system can handle a gap that large. Well, of course it can fire the plug, but that's alot of resistance and your coil is going to get really hot. My system actually uses two coils and I do not have a distributor so my spark energy is well conserved. Also I am running Nology hot core wires so that gives an extra kick to jump that gap..

Later on when I rebuilt that engine, I not only increased my compression with a 70% thinner head gasket, but I used a 20% larger supercharger that raised my boost from 13lbs to to 17.5 lbs. I switched to Iridium plugs and they would only fire at middle RPMs (5000+) and above if they were gapped to 0.022"

Now I have the same EFI system on a normally aspirated engine with about 10.8:1 compression with 4 individual 44mm throttle bodies. I bought some new Iridiums when I did the engine swap and I can run the gap anywhere up to about 0.050" But I found that anything above 0.038" on my setup gives a rough idle and slight hesitation diring quick throttle spikes. So Ive got them at about 0.035" right now and the power is smooth.

Stock gap on the plugs were 0.044" but thats for stock Toyota US market gaylord engines.

Man you can play with little things for the rest of your life and it may feel better from one day to the next, but what I am learning right now is that when you get into some hardcore changes in the engine nothing matters unless you ditch the stock ecu and go full stand alone. But this is on the very extreme side of the "i want more power, what should I do" topic.

I remember a post a long time ago that gave some great ideas.... Let me search.... hang on...

Ok, I found it. Please see this post: Cheap 4 Banger power tricks?

Its got a list of mods you could consider..

Read the list and let me know what you think...

Regards,
BigMike

[SWAMPER]

Man Ive been wanting to replace the sparkplugs (not the Bosh Ill get NGK) but It keeps pouring down here in San Antonio...which I would not mind at all If I could actually do some wheeling psss  I like mud a bunch too!!!

[yotaboy79]

hey mikey my 20r has the friggin water jackets running through the intake manafold where the carb mounts could i block that off like you would on the throttle body and would it hurt any thing??

[BigMike]

How does the choke on a carb work? Is it related to the temperature of the carb?

The cold idle would be the only concern..

[yotaboy79]

my choke doesnt work any way so??

[Jared]

my buddy has a 1989 toyota truck with a 3.0 litre motor and it is just crap.  He replaced the plugs and the cap and rotor and the spark plugs and just about everything you could think of..... Its still underpowered.  it always craps out when goin up hillls....  I need help./....

[SWAMPER]

Hey guys I replaced my sparkplugs alredy ...well kinda I put them on but dint put the cables right my big ol paws wont let me so Im going to let my olderbrother do it ...I tried to go for the NGK's but autozone dint carry them so I just bought Denso....I asked the price for the IRidiums and they quoted me 15 bucks  I passed out and they brought me back with a couple of    dang those things are expensive...and I thought 5 bucks for the Bosh Platinum 4 were expensive  well as soon as my older bro takes a look at it Ill let you guys know how it went thanks for your post and your info it helped me a bunch....(I had problems with #3 and #5 my paw's wont fit!!! )

[brainlessfool]

exhoust pluged?

[SWAMPER]

  no brainless....man the shame!!! 

[Prismo]

Mike, I remember hearing the 22rte throttle body is larger than the stock 22re unit. Any truth to this & any experience with this mod if it is true?

[84runner]

The denso plugs are a factory replacement for your engine I think and the iridium is for the new cars. I think they would burn to hot for your car

[Skinny_Pedal]

yeah im curious as well if the 22ret throttle body is bigger. lets hear it mike