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91 civic
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Hi im new and need some help. I have a 91 civic dx and i have a sohc zc in it.
my check engine light is on with a code 9&14 dont know what it is or how to fix it. Can anyone help me.(pm7ecu) thanks
 

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9 is the cylinder position sensor(cyp) its either defective or not pluged in maybe cleaning it can work not sure...its inside the dizzy...and as for 14 thats the intake air control valve(iacv) that is the plug behind the intake mani...take it out and clean it...unplug the negative from the battery for 10sec and then if it stills trows 14 then the iacv is bad
 
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