Need URGENT HELP PLSS !!

[aucorium]

hey guys

installed the K&N sri setup , as per the book , but car ideling very low and eventually cuts out , what is the porblem ?? all pipes are on and working

[YAR1S]

the air sensor(I think thats what its called?) attached?

[aucorium]

yeah , air sensor AKA mass airflow meter is on.

[aucorium]

everything is on and plugged in as per instructions , im not sure of the air sensor is maybe faulty ? or if the vacume switch can cause the car to idle so low ?

come to think of it , with the OEM intake on the car did occilate quite hectically at times , like irregular ideling ,mmm , wonder what it can be ? maybe the intake made it more promenant

[Astroman]

did you unplug the negative terminal completely for at least 15 minutes? When I installed my AEM I just unhooked the battery during the install and I was fine.

[aucorium]

yeah , i unplugged the terminal while installing , then reconnected when done , was off for approx 50min

[Astroman]

Any chance the MAS was damaged? Any check engine lights?

[aucorium]

can the idle be set on the yaris ? maybe the dealer can set it with the ODB2 port tester ?

[aucorium]

Any chance the MAS was damaged? Any check engine lights?

i took the MAS out agian and checked , didnt see any damage , no engine check lights. scangauge also didnt pick anything up.

[Astroman]

Honestly I don't know but if I had to guess I'd say no as this is something the ecu probably handles... But go ahead and correct me if I'm wrong.:biggrin:

[aucorium]

i wonder if alot of driving will sort it out? idling is very low , approx 400rpm - 500rpm

[Thirty-Nine]

Strange. I just installed this unit without a problem. I wish I had something else to add ...

[cali yaris]

Idle is not adjustable. It does sound like a MAF problem.

My Yaris always rpm hunted, I never liked that about it.

[aucorium]

yeah , could be MAF , i wonder if it isnt mabye dirty or somthing ? i did notice a little bit of black dirt on it , gave it a little wipe , but not properly. is a MAF very sensitive or a little robust ? how can you clean a MAF ?

[chongopants]

try resetting ecu and cleaning maf

[aucorium]

already reset ECU , but havent cleaned the MAF , i did notice some black dirt on the one side of the sensor , how do i clean that off ? dont wanna break it

[aucorium]

i noticed in the K&N sri setup there is a small oval shaped piece of metal at an angle in the intake , why is it there ? to create wind turbulence ?

[PHXDEMON]

Now by cuts out do you mean the engine stalls completely? If it just oscillates a little on idle that is normal if you have an intake.

[ddongbap]

yeah , air sensor AKA mass airflow meter is on.

Its not a AFM.

[yaris-me]

You can buy a spray can at the auto parts store for the MAF. You can also use alcohol on a Q-tip.

[aucorium]

FOUND the problem !!!
YAY

problem was with the k&N SRI , there is a small piece of half circle metal , just before the MAF in the intake pipe that suppose to cause the air to spiral , but this cause the car to idle to low as the air was getting pushed on top of the sensor , so we grinded the piece away and works 100% idles just like stock , K&N SRi guys , i would HIGHly recommend doing this, car is pulling great , no lag or funning idling , thanks for all the input guys , you ROCK !!! yarisworld FTW !!!