Engine running rich

8

87DIB5.0

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Jun 9, 2018

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Houston

Dec 13, 2019

#21

• Dec 13, 2019

• #21

I’ve cleaned the sensor. I may try to change the o2 sensors. No I don’t have the carbon canister.

 

8

87DIB5.0

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Jun 9, 2018

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Houston

Dec 13, 2019

#22

• Dec 13, 2019

• #22

I’ve read that having the mass air sensor that I have with a 70mm housing can give you incorrect readings because the stock housing was 55mm. And a fix to this is to run the FTVF-12b579-A2A sensor. Have you ever heard this?

 

D

Deleted member 215073

Dec 13, 2019

#23

• Dec 13, 2019

• #23

I put a MAF sensor from a 94-95 Mustang and installed it into a 94-95 T-Bird 70mm housing. It bolted right up and works great. Both cars used a 70mm housing but the sensor itself is different.

Not having a carbon canister can increase fuel vapor smell as well because your fuel tank is venting to atmosphere now.

 

8

87DIB5.0

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Jun 9, 2018

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Houston

Dec 13, 2019

#24

• Dec 13, 2019

• #24

If it was just the fuel tank venting to atmosphere wouldn’t it smell all the time? I may just change the 02 sensors and try the other mass air sensor and see if that helps.

 

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

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Dec 13, 2019

#25

• Dec 13, 2019

• #25

*2.) MAF & sensor interchange
The 94-95 Mustang 5.0 MAF & sensor is also found on:
1995-94 Mustang 3.8L F2VF-12B579-A2A,
1994-92 Crown Victoria 4.6L F2VF-12B579-A2A,
1995-94 Mustang, Mustang Cobra 5.0L F2VF-12B579-A2A,
1994-92 Town Car 4.6L F2VF-12B579-A2A,
1994-92 Grand Marquis 4.6L F2VF-12B579-A2A,
Evidently the –A1A, -A2A, AA, etc. on the end of the part number is a minor variant that did not change the operating specs. You should be able to ignore it and have everything work good.

 

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

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#26

• Dec 13, 2019

• #26

Charcoal canister needs to be installed, the fuel system is a closed system by design. Also no cats are known for stinking exhaust but the dark plugs tell a story too. Swap in some fresh plugs, nothing special just regular copper plugs work very well.
from the pics and the list I posted you have what appears to be a stock maf and sensor.

 

8

87DIB5.0

Member

Jun 9, 2018

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Houston

Dec 13, 2019

#27

• Dec 13, 2019

• #27

I’m going to look into getting the charcoal canister installed. I appreciate y’all’s help.

 

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

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#28

• Dec 13, 2019

• #28

I'm pretty sure we are not done yet

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

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Dec 14, 2019

#29

• Dec 14, 2019

• #29

When you stated you got s code 11, did you perform the test completely?

You should get three code 11s.

KOEO and CM are done with the engine off. These are your instant and stored codes.

Then start the engine and let it run the engine running codes. Should get a code 11 there as well.


I only ask because sometimes guys pull codes like obd2 where you run them engine off and only expect one group of codes.

 

Blown88GT

Founding Member

Nov 13, 1999

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Palm Beach Gardens, FL

Dec 14, 2019

#30

• Dec 14, 2019

• #30

MAP sensor must be reconfigured.

banzaibullitt's Album: MASS AIR CONVERSION 05-04-10

The Early Fox Site: Mustang, Capri, Fairmont, Zephyr, SVO, Cougar, Thunderbird, LTD, Mark VII,

www.foureyedpride.com

Also...factory air box has been removed & replaced with a filter mounted directly to the MAF.
Now, you're feeding the engine hot air instead of cold air.
So-called cold air kits cause other problems.

 

Last edited: Dec 14, 2019

Reactions: General karthief

General karthief

wonder how much it would cost to ship you a pair

Mod Dude

Aug 25, 2016

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#31

• Dec 14, 2019

• #31

To add to the above post, placing the filter on the end of the maf may effect the airflow through it causing erratic readings. Best thing to do is replace it with a stock air box or ad a pipe that puts the filter inside the fender cavity.

 

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87DIB5.0

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Jun 9, 2018

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Houston

Dec 14, 2019

#32

• Dec 14, 2019

• #32

I tried pulling the codes while the engine was running but never got any readings, not even a code 11, I’ll try it again. The MAP sensor is already left open to atmosphere. I do have a new intake ordered to move the filter to the inner fender well.

 

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87DIB5.0

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Dec 14, 2019

#33

• Dec 14, 2019

• #33

Also my coolant temp takes forever to warm up and I have a hard time keeping the temp in the normal operating temp range. I assume my fuel issue is related to this because the car is always thinking it running cold. I’ve installed a 190 degree thermostat and it has a 2” aluminum radiator with an electric fan that comes on at 215F. The ECT sensor and the temperature sensor for the gauge are both new.

 

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Mustang5L5

That is…until I whipped out my Bissell

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Dec 14, 2019

#34

• Dec 14, 2019

• #34

87DIB5.0 said:

I tried pulling the codes while the engine was running but never got any readings, not even a code 11, I’ll try it again.

Click to expand...

You need to run the KOEO and CM codes first before starting the engine and doing KOER.

But the engine running codes are the more important ones to pull.

 

8

87DIB5.0

Member

Jun 9, 2018

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Houston

Dec 15, 2019

#35

• Dec 15, 2019

• #35

Mustang5L5 said:

You need to run the KOEO and CM codes first before starting the engine and doing KOER.

But the engine running codes are the more important ones to pull.

Click to expand...

I did, but I’m going to try it again.