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Location of MAF sensor
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shengang1203
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PostPosted: Tue May 03, 2011 3:18 pm    Post subject:  Location of MAF sensor Reply with quote

I want to disconnect the MAF sensor to check if that caused the jerking driving now and then. So where is it?

Is it one of the numbered components or elsewhere?


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Last edited by shengang1203 on Tue May 03, 2011 4:29 pm; edited 1 time in total
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ZSPOT
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PostPosted: Tue May 03, 2011 4:12 pm    Post subject:   Reply with quote

Close. Laughing It's the silver block that is connected to the air box to the right of #3 in your pic.

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shengang1203
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PostPosted: Tue May 03, 2011 4:31 pm    Post subject:   Reply with quote

ZSPOT wrote:
Close. Laughing It's the silver block that is connected to the air box to the right of #3 in your pic.


Very Happy. Thanks.

It is number #6 then?

BTW, what respective components are others:
#1: EGR valve?
#2: ?
#3: ?
#4: ?
#5: ?

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billy101
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PostPosted: Tue May 03, 2011 7:42 pm    Post subject:   Reply with quote

shengang1203 wrote:
ZSPOT wrote:
Close. Laughing It's the silver block that is connected to the air box to the right of #3 in your pic.


Very Happy. Thanks.

It is number #6 then?

BTW, what respective components are others:
#1: EGR valve?
#2: ?
#3: ?
#4: ?
#5: ?


Yes, that would be number 6.

#3 is your IAT (Intake Air Temp)
#4 is your FPR (Fuel Pressure Regulator)
#5 is what controls your throttle plate, you can push on it to rev the motor up when under the hood.
I think #2 is just a vacuum hose, not 100% sure though.
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PostPosted: Tue May 03, 2011 8:32 pm    Post subject:   Reply with quote

ZSPOT wrote:
Close. Laughing It's the silver block that is connected to the air box to the right of #3 in your pic.




This thing circled in blue? I took this apart, (uses torx-bix screws) and found it comprised of metal vanes and springs. It was all black so I sprayed it with MAF cleaner and got it silver and clean again. Very Happy

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shengang1203
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PostPosted: Tue May 03, 2011 9:28 pm    Post subject:   Reply with quote

Thank all of you, guys.

To take it apart:

(1) Disconnect the electrical connector

(2) Unscrew the screws (2?)

(3) Pull it out and spray the CRC MAF sensor cleaner.

Correct?

I saw somewhere that some parts are very delicate and try not to damage them. What are they?

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PostPosted: Thu May 05, 2011 6:39 am    Post subject:   Reply with quote

Expensive to replace; but not as expensive as foreign as I found out once. Wink

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PostPosted: Thu May 05, 2011 9:31 pm    Post subject:   Reply with quote

awesome post guys! helps me out a bunch. check engine lights been on for months because of a MAF sensor. car jerks when accelerating, popped in the code reader and BOOM...MAF Evil or Very Mad

anyway, can someone post a tut on how to clean the sensor? if that's even possible. i cant stand the CE light on all the time.

also, when building your own FWI, theres no area for the MAF.

help?
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Jayme
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PostPosted: Thu May 05, 2011 9:50 pm    Post subject:   Reply with quote

shengang1203 wrote:

To take it apart:

(1) Disconnect the electrical connector

(2) Unscrew the screws (2?)

(3) Pull it out and spray the CRC MAF sensor cleaner.

I saw somewhere that some parts are very delicate and try not to damage them. What are they?


What he said. Do NOT use carb cleaner unless you want to find out how much a new MAF costs.

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Start them out right...
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PostPosted: Fri May 06, 2011 12:21 am    Post subject:   Reply with quote

2001_9C1 wrote:
awesome post guys! helps me out a bunch. check engine lights been on for months because of a MAF sensor. car jerks when accelerating, popped in the code reader and BOOM...MAF Evil or Very Mad

anyway, can someone post a tut on how to clean the sensor? if that's even possible. i cant stand the CE light on all the time.

also, when building your own FWI, theres no area for the MAF.

help?
Embarassed


The fwi coupler starts after the mass air flow
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2001_9C1
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PostPosted: Fri May 06, 2011 4:45 pm    Post subject:   Reply with quote

uber n00b here. can anyone label the MAF on an impala that has a FWI? im looking to build/install one this weekend.
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PostPosted: Fri May 06, 2011 5:25 pm    Post subject:   Reply with quote

2001_9C1 wrote:
uber n00b here. can anyone label the MAF on an impala that has a FWI? im looking to build/install one this weekend.

Your 3.8L has a totally different set up. Your MAF sensor actually mounts into the throttle body. So building a FWI is much easier IMO.

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shengang1203
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PostPosted: Sun May 22, 2011 9:56 pm    Post subject:   Reply with quote

I took apart the MAF sensor and cleaned it. Unfortunately, when I tried to install it back, my finger accidentally touched the surface of the MAF sensor. I saw one or two cells were kind of distorted. What damage can this cause?

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PostPosted: Mon May 23, 2011 8:46 am    Post subject:   Reply with quote

shengang1203 wrote:
I took apart the MAF sensor and cleaned it. Unfortunately, when I tried to install it back, my finger accidentally touched the surface of the MAF sensor. I saw one or two cells were kind of distorted. What damage can this cause?



When you say cells do you mean the honey comb on the front? Kinda bent in a little like the foil on an air conditioner when you run your finger down it.
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shengang1203
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PostPosted: Mon May 23, 2011 8:56 pm    Post subject:   Reply with quote

davidhoutz wrote:
shengang1203 wrote:
I took apart the MAF sensor and cleaned it. Unfortunately, when I tried to install it back, my finger accidentally touched the surface of the MAF sensor. I saw one or two cells were kind of distorted. What damage can this cause?



When you say cells do you mean the honey comb on the front? Kinda bent in a little like the foil on an air conditioner when you run your finger down it.


Exactly what I meant. Any impact?

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