Engine running rich

87DIB5.0 · Dec 13, 2019

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

87DIB5.0 · Dec 13, 2019

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?

Deleted member 215073 · Dec 13, 2019

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.

87DIB5.0 · Dec 13, 2019

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 · Dec 13, 2019

*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 · Dec 13, 2019

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.

87DIB5.0 · Dec 13, 2019

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

General karthief · Dec 13, 2019

I'm pretty sure we are not done yet

Mustang5L5 · Dec 14, 2019

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 · Dec 14, 2019

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.

General karthief · Dec 14, 2019

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.

87DIB5.0 · Dec 14, 2019

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.

87DIB5.0 · Dec 14, 2019

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.

Mustang5L5 · Dec 14, 2019

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.

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.

87DIB5.0 · Dec 15, 2019

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.

I did, but I’m going to try it again.

Engine running rich

87DIB5.0

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87DIB5.0

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Deleted member 215073

87DIB5.0

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General karthief

wonder how much it would cost to ship you a pair

General karthief

wonder how much it would cost to ship you a pair

87DIB5.0

Member

General karthief

wonder how much it would cost to ship you a pair

Mustang5L5

That is…until I whipped out my Bissell

Blown88GT

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

General karthief

wonder how much it would cost to ship you a pair

87DIB5.0

Member

87DIB5.0

Member

Mustang5L5

That is…until I whipped out my Bissell

87DIB5.0

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