i have a 2000 4 runner 2wd v6 and when i go to accelerate 0 mph to 1 mph theres a hesitation where nothing happens and the motor dies a lil bit then it takes off and runs great from there on so at red lights and anytime i stop this happens and now it just started to run rough right when i start it then it clears up and runs allright anyone know what this might be i was told either an 02 sensor or a fuel pump? the check engine light is on and autozone says something to do with bank 2 running rich and running lean picture that!

 

please post code #'s.....

 

I will post codes later today

 

consult crystal ball - dirty maf

 

ok i took off my maf and i was looking at the wrong prongs on it the ones on the inside are filthy i think one might even have hair wrapped around it so im going to go get some contact cleaner and soak it down ill let you know in about 3 hours if it worked thanks

 

oh yeah reset your ecu. pop the battery cable, go have a sandwich, come back in 10, drive.

 

use spray maf cleaner, like crc. something guaranteed to leave no residue of it's own. it might take half the can to clean a really dirty maf element. let it soak, blast it but don't physically touch the wires with anything. the slightest bend in the wire will change the signal it produces. you don't want that. spray won't hurt it though. (a q-tip would)

 

Dude you're the man its all fixed cleaned and the check engine light is off and it runs great again thanks alot you saved me some money it only cost me a $6 can of maf cleaner!!!

 

since my maf was filthy and my 4runner rand like crap would that of made me get terrible gas mileage too or have nothing to do with that?

 

probably, no way to tell until you drive it after and see what you get. After cleaning mine and doing some routine maintenance, I increased mine from 17 MPG to 21 MPG. That included cleaning out both filaments in the MAF.

 

Yes, it would definitely effect your mileage.
Cleaning your MAF is one of the easiest and most beneficial things you can do for your Yota.

Glad you got your codes and problem fixed.



Fink

 

yup it can nuke gas mileage