help---MAF

3

306man

New Member

Jul 6, 2007

17

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0

denver,CO

Sep 17, 2007

#1

• Sep 17, 2007

• #1

Need help with the maf,, Car ran fine until i put the full mac exhaust system on about an hour later the mass air flow unit started pulling in so much air it barely idles and wants to die , with the maf making a big suction noise.... Any Ideas

 

vristang

15 Year Member

Mar 31, 2005

4,933

101

124

Seattle

Sep 17, 2007

#2

• Sep 17, 2007

• #2

I have no idea...

Pull the diagnostic codes and let us know what you get...

KOEO & KOER (assuming it will run)


jason

 

3

306man

New Member

Jul 6, 2007

17

0

0

denver,CO

Sep 17, 2007

#3

• Sep 17, 2007

• #3

hey jason there is only one problem... I have nothing to find out what codes are coming up...

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Sep 17, 2007

#4

• Sep 17, 2007

• #4

See Jrichker's post on pulling codes with a hair-pin (I think Jason has a tech-note on his own site as well).

 

vristang

15 Year Member

Mar 31, 2005

4,933

101

124

Seattle

Sep 17, 2007

#5

• Sep 17, 2007

• #5

Give this a try, if JRichker doesn't post something better...
http://www.troublecodes.net/Ford/
(I have had guys complain that it didn't work, but I've never done it this way myself, so I'm not sure. It's definately worth a try...)



The spreadsheet I have put together is freaking out, but there is some info on code readers here...
http://www.freewebs.com/vristang/eecivdiagnostics.htm

Let Us Know,
jason

 

3

306man

New Member

Jul 6, 2007

17

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0

denver,CO

Sep 18, 2007

#6

• Sep 18, 2007

• #6

hey just to let you guys know, I just heard a rumor saying that I may have a plugged muffler or h-pipe so im gonna see what the deal is.... Get back to ya after I diconnect.... Thanks for trying to help me,, greatly appreciated....

 

jrichker

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Mar 10, 2000

27,512

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Dublin GA

Sep 18, 2007

#7

• Sep 18, 2007

• #7

Dump the codes and see what the computer says is wrong…Codes may be present in the computer even if the Check Engine light isn’t on.

Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great. You watch the flashing test lamp or Check Engine Light and count the flashes.

See http://www.troublecodes.net/Ford/

IF your car is an 86-88 stang, you'll have to use the test lamp or voltmeter method. There is no functional check engine light on the 86-88's except possibly the Cali Mass Air cars.

89 through 95 cars have a working Check Engine light. Watch it instead of using a test lamp.

Codes have different answers if the engine is running from the answers that it has when the engine isn't running. It helps a lot to know if you had the engine running when you ran the test.

Trouble codes are either 2 digit or 3 digit, there are no cars that use both 2 digit codes and 3 digit codes.

For those who are intimidated by all the wires & connections, see http://www.actron.com/product_detail.php?pid=16153 for what a typical hand scanner looks like. Normal retail price is about $30 or so at AutoZone or Wal-Mart.

Or for a nicer scanner see http://www.midwayautosupply.com/pc-7208-90-equus-digital-ford-code-reader-3145.aspx – It has a 3 digit LCD display so that you don’t have to count flashes or beeps.. Cost is $30.

 

3

306man

New Member

Jul 6, 2007

17

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0

denver,CO

Sep 18, 2007

#8

• Sep 18, 2007

• #8

well it wasnt the exhaust,, i wonder if the maf took a poop???? and i ordered that code reader

 

3

306man

New Member

Jul 6, 2007

17

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0

denver,CO

Sep 18, 2007

#9

• Sep 18, 2007

• #9

the codes i recieved from counting the light are , 5131, 8182, 8584...

 

vristang

15 Year Member

Mar 31, 2005

4,933

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124

Seattle

Sep 18, 2007

#10

• Sep 18, 2007

• #10

306man said:

the codes i recieved from counting the light are , 5131, 8182, 8584...

Click to expand...

lol
Try again...

The codes will be 2-digit...

 

F

facemelter71

New Member

May 29, 2006

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0

cincy

Sep 20, 2007

#11

• Sep 20, 2007

• #11

Ive got an 89 notch,basic 5liter.E-cam electric fan,long tubes,off road H,flowmaster dumps.Stock computer,no tune,stock maf untill yesterday.Car ran fine when all installed.The exhaust i highly doubt will make your car wanna do that.But just in case,start the car and at least try to get it to idle so the comp can relearn itself.If not.Frisby the mass meter and replace.Dont buy some huge 90mm either,it wont work.just a 70 mm will be fine.

 

3

306man

New Member

Jul 6, 2007

17

0

0

denver,CO

Sep 20, 2007

#12

• Sep 20, 2007

• #12

ok cool... wondering if i buy the new maf will it come with the pluggin on top cause i want a new one just in case

 

3

306man

New Member

Jul 6, 2007

17

0

0

denver,CO

Sep 20, 2007

#13

• Sep 20, 2007

• #13

ok i can get the new sensor on top of maf to right... also wondering should i step up the injectors , they are stock... have a basic 306 with 190 160 heads and the cam is a f303, .512 lift..

 

F

Fox8950

Member

Jun 29, 2007

247

2

18

Sep 20, 2007

#14

• Sep 20, 2007

• #14

Just out of curiosity did you unplug the neg. battery cable for a while to reset the comp? And with my old CAI (which I removed and went back to stock airbox) if you have one I know clocking (rotating) the MAF changed how it ran alot, I'm assuming because the sensor doesn't like taking readings from air coming off a curve like most the CAI kits are

 

3

306man

New Member

Jul 6, 2007

17

0

0

denver,CO

Sep 21, 2007

#15

• Sep 21, 2007

• #15

ok sounds good... i will try turning it in the morning with it running i will get back to you guys on that.... thanks..

 

3

306man

New Member

Jul 6, 2007

17

0

0

denver,CO

Sep 22, 2007

#16

• Sep 22, 2007

• #16

well it worked...lol.. turned the maf half way and cleared codes and it works.... thanks everyone for the info....