2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Wierd safc problem

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Old Nov 23, 2005 | 12:41 PM
  #1  
7ormore's Avatar
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From: minnesota
Wierd safc problem

Well my car was having a little hesitation problems when i was driving it so i looked and found that the wires to the bac had melted off so i rewired them. the problem is that when i have my safc unplugged the car will idle but when i step on the gas it dies, when its plugged in it runs ok.

Any ideas why this is happening, I didn't wire up the safc i bought the car with it already installed.
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Old Nov 23, 2005 | 01:20 PM
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Well the hesitation is deffinitly gone also is the a/f % go down or up when you accelerate? All my setting are set at zero accept the basic things.
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Old Nov 23, 2005 | 05:11 PM
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From: Laredo, Tx
Originally Posted by 7ormore
Well my car was having a little hesitation problems when i was driving it so i looked and found that the wires to the bac had melted off so i rewired them. the problem is that when i have my safc unplugged the car will idle but when i step on the gas it dies, when its plugged in it runs ok.

Any ideas why this is happening, I didn't wire up the safc i bought the car with it already installed.


AFAIK you MUST have the AFC plugged in for the AFM signal to reach the ECU. Since you cut and spliced the AFC harness inbetween the input to the ECU and the output from the AFM. I don't know what gave you the idea to try and run the car with the AFC unplugged but FWIW i've never seen in the manual that that is recommended or even possible.
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