Engine 1986 GtT running eye-burning rich

gmartian

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Dec 7, 2020
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My 1986 gt project car is running absurdly rich. I have been through nearly every sensor in the car, have taken everything from the lower intake up off and have reinstalled it with new injectors. It had been sitting for around 15 years before i had it running and it wasn’t running rich when i first had it running, but all of a sudden it runs super rich and cannot idle on its own
 
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gmartian

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Dec 7, 2020
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Seekonk
I havent checked codes, do i have to just hook a test light up to the test port in the bay? And brand new plugs wires cap and rotor.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
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Pull the plugs and see if they are black
 

gmartian

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Dec 7, 2020
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FoxChasis

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Dec 23, 2003
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Did you get the right plugs? Do you know for sure that you have stock (E6SE) heads? Those heads were one-year-only (1986) on the Mustang and they had special plugs as well (AWSF42C, not ASF42C from every other year). Did you put the plugs back in the correct (counter-clockwise) firing order?

1982-95 H.O. 5.0L firing order: 1-3-7-2-6-5-4-8
 

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gmartian

New Member
Dec 7, 2020
11
0
1
18
Seekonk
Did you get the right plugs? Do you know for sure that you have stock (E6SE) heads? Those heads were one-year-only (1986) on the Mustang and they had special plugs as well (AWSF42C, not ASF42C from every other year). Did you put the plugs back in the correct (counter-clockwise) firing order?

1982-95 H.O. 5.0L firing order: 1-3-7-2-6-5-4-8
Yes I made sure that I had the correct plugs and yes I have the e6se heads as well. This is why this situation is becoming more confusing as I go on.
 

Doh

New Member
Nov 25, 2005
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I had my car run crazy rich when my MAP sensor wasn't getting proper signal. The vacuum wasn't connected.