code 27
code 27
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Joined: Nov 2009
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From: McCall,Idaho
Year: 1991
Model: Cherokee
Engine: 4.0L high output with compressed valves
code 27 means that the PCM detected a fault in the injector or the wiring to the injector. It monitors the injector and when the injector is activated, the PCM expects to see the voltage pulled "low" or close to zero. When the injector is switched off, the PCM expects to see a voltage that is close to battery voltage or "high". If it doesn't see the expected voltage the PCM will set this code. The PCM also monitors resitance in the circuit. If the resistance is excessively low or high it will set this code.
I have a code 46 which means that my voltage is to high it runs about 15 to 16 so do u think that maybe my over charge is the reason it turned on? it runs perfectly no funky sounds and runs smooth
I have a code 46 which means that my voltage is to high it runs about 15 to 16 so do u think that maybe my over charge is the reason it turned on? it runs perfectly no funky sounds and runs smooth
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