cleaning throttle body - Toyota Nation Forum : Toyota Car and Truck Forums

FRITO · 05-12-2003, 05:08 PM

i installed my CAI about a month ago. since then i have had rough idle in D(drive) engine seems to "chug" and puff black smoke intermitenly.

I have been told to clean my trottle body. what spray would you guys suggest i get? do i use a old towel to clean it?

also, what else might caUSE THIS PROBLEM?

THANKS!

FRITO · 05-12-2003, 05:40 PM

ok, I fucked up....

i just went to inspect my CAI and went to see how clean or dirty it was and was taking of that electrical plug that feeds in the filter or whatever between the cai filter and throttle body. i unscred the two screws and found connections. so i put it all back. and heard so hissing or something comming from electrical wires. def not pipes because it happened when i was messing with the electrical thing.throttle body was decent.

go and start car and car wont start. it wont turn over. so what do i do?

wontonjohnny · 05-12-2003, 05:55 PM

oh man ... you fuked it up man ... that part is not removable... there are usually some solder wires and stuff in there ... i think you have to get it replaced

boroEF · 05-12-2003, 11:13 PM

if u messed with the AFM u can simply go to the junkers and get another one.
the car wont run without a functioning AFM

88 LE · 05-13-2003, 03:06 AM

Cut open the black plastic lid on the AFM and see if you can fix the connections.

Just cut around the silicone seal and pop the lid off.

If you can't fix it you'll have to get another AFM.

FRITO · 05-13-2003, 06:44 AM

ok i try messing with it today.

how DO I take off the plug? or does it nott even come off?

then how would I get a replacement? where does that wire lead to?

would this haveanything to do with the black smoke i had?

THANKS GUYS!

88 LE · 05-13-2003, 07:37 AM

Quote:

Originally posted by FRITO
how DO I take off the plug? or does it nott even come off?

The plug comes off. Just wiggle one side then the other and it'll come off.

Quote:

then how would I get a replacement? where does that wire lead to?

What wire? The harness that plugs into the AFM?

Anyways your problem is not with the wire / harness. Its with the AFM itself. When you removed those 2 screws and pulled out the connector you broke some of the connections.

So your only option is to cut open the lid and see if you can fix the connections or get another AFM (go junkyard hunting).

Quote:

would this have anything to do with the black smoke i had?

No.

Pic of afm harness:

Pic of afm:

Den · 05-13-2003, 11:12 AM

can't you jsut take it off and run without the AFM

I see cars running without the AFM

FRITO · 05-13-2003, 04:56 PM

88 le do have pics with the black plastic thing removed? im gonna soler it back. i touched the existing soldering to where it suppose to be and car works. just need to permentatley fix it.

do i just silicone it back on?

also is den right about running car without afm?
what would be the advantage. disadvantage?

Thanks guys!

FRITO · 05-13-2003, 05:40 PM

alright screw it. im gonna go to junk yard.

i screwed the soldering...

i tried runnign car without AFM and is started and ran but then died really quick.....any suggestions?

menaboy64 · 05-13-2003, 09:15 PM

the afm measures the amount of air the engine recieves so it can compensate for the fuel mixture. If you can even get the car to run without it somehow by rigging it somehow then the car will run very rich and probably rough.

FRITO · 05-13-2003, 10:21 PM

Quote:

Originally posted by menaboy64
the afm measures the amount of air the engine recieves so it can compensate for the fuel mixture. If you can even get the car to run without it somehow by rigging it somehow then the car will run very rich and probably rough.

ok when i installed my CAI i messed with this thing, now that i look back on it. after installing I ran car, black smoke had been a problem since then. so im guessing i messed the AFM up before and it wasnt regualting air correctly giving me a rich fuel mixture. black smoke means rich right?

so this explains black smoke?

im gonna replace it ASAP, for now my brother takes me to school...lol

hopefully after replacing my car runs fine without black smoke and bad/ rough idle.....

Hotwheelharmer · 05-13-2003, 10:39 PM

Quote:

Originally posted by Den
can't you jsut take it off and run without the AFM

I see cars running without the AFM

No you can't run a vehicle without the air flow meter. The AFM controls the fuel pump along with the amount of air comming into the engine. What you see if cars that were not built with an AFM they either have a MAP sensor and intake air temp sensor or they have a Mass air flow sensor.

88 LE · 05-14-2003, 03:30 AM

Quote:

Originally posted by FRITO
88 le do have pics with the black plastic thing removed?

No.

I guess I can cut it open and take a pic of it since my engine is blown and torn apart anyways.

I'll post the pic up later on after I cut open the lid.

Quote:

do i just silicone it back on?

Yup. Just put the lid back on after your done and seal around the gap.

Quote:

also is den right about running car without afm?
what would be the advantage. disadvantage?

If the car is equipped with a AFM, it has to be connected otherwise it will not run.

white90dx · 05-14-2003, 03:59 AM

Quote:

Originally posted by FRITO
how DO I take off the plug? or does it nott even come off?

Yes, the plug can come off. You don't use the screws though (as 88LE said). There is a small metal clip that goes around the connector. Pry that up carefully with a small screwdriver and carefully unplug the connector. It should be pretty easy.

Good luck.
-Charlie