staufson

I am having issues with my runner "stuttering" when I accelerate. It normally happens from 1k to 2k rpms. Thus far I have cleaned the throttle body, put in a new fuel filter, and it has had a tune up (new wires and plugs @ 85000 now @ 145k). I have read about the tps, egr sensors. I did recently undo the wire to my tps and it did not stutter as bad. Any other suggestions....Also it idles fine, it's only when I speed up, once I get above 2k in rpms it runs fine.

Gus

portercassidy

New plugs. You have over 50K on them. Find somebody with a good sensor and plug it in to yours to see if it works better.

Elton

clean the maf install new plugs ngk or factory denso dual ground

jpmountainboy

if you unplugged the tps and it ran better I would check/adjust/replace? it.

its a little tricky to test, but just cause its so small in there.

staufson

yea i have read on how to check it with an ohm meter, i have also recently cleaned the MAF when i had a check engine light come on. i reset the computer after cleaning and have not had any other problems

etan

check the easy stuff plugs and wires, sounds like its missing.

rimpainter.com

Did you have the code read, or assume it was the MAFS?

staufson

I had the code read. I am going to replace the plugs and wires this weekend and see what happens. Is it necessary to get the double grounded plugs?

rimpainter.com

Yes, get the OE-recommended plugs. That CEL was telling you something though. I'd be curious if the MAFS got gummed up. Got a K&N by any chance?

raydouble

Which P code was thrown?

x2 on the plugs need replaced.......with dual grounds.

toyota808

you definitely need dual electrode pluGs!!! go with NGK or denso, never bosch or anything else. the you need dual electrode plugs because of the way the current flows through because of the coil packs.

YUonDAGround

I have been following this converstation because I am having the same problem. Do K&N filters gum up the MAF pretty quickly? I've run one for 3 years now and this is the first time I've thrown a code at all. I am also getting the P0302.

etan

K&N filters do have a history of clogging up MAFs because of the oil involved. using MAF sensor cleaner you should be able to clean it up. I do ahve a K&N filter but haven't had any problems on my 3.4L.

staufson

well it looks like it was the plugs guys. it finally through a code yesterday that was said tps, and misfire on cylinder 2. after pulling the plugs all of them were slightly grey and one was black or looked like it had been burnt.