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-   -   CEL codes P0172 and P0325 (

SCTSVT 10-08-2012 07:23 PM

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


jp96921 10-17-2012 09:43 PM

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.

SCTSVT 10-22-2012 03:35 PM

Thanks! Where would the vacuum lines be? I know there's one by the firewall, but are there more?

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