CEL codes P0172 and P0325 - Focus Fanatics
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Old 10-08-2012, 07:23 PM   #1
SCTSVT
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CEL codes P0172 and P0325

I just replaced the coil and wires in my SVT and after running absolutely perfect for about 60 miles the CEL came back on. I know they're codes for running rich and a knock, but after changing the Knock sensor back in July that code went away. Is it already bad again?! Any input would be greatly appreciated


Steve


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Old 10-17-2012, 09:43 PM   #2
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Hi Steve! you need to check to see if you have a vacuum leak in and around the engine. having a vacuum leak will cause P0172 and possibly the spark knock on accel. hope that helps.
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Old 10-22-2012, 03:35 PM   #3
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Thanks! Where would the vacuum lines be? I know there's one by the firewall, but are there more?
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