156 PCV valve - Alfa Romeo Forum
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156 JTS facelift

156 PCV valve

Just a quick heads up for anyone interested regarding a 156 JTS, I changed out my PCV valve the other week and noticed the plastic valve was slightly larger than the original and the spring was slightly different.

This solved my idle surging problem (fluctuation between 600rpm and 1200rpm occasionally).

Still have a misfire though only at idle. Tested the coilpacks, changed all the O2 sensors because they were due, tested the MAF with another one and soldered the O2 sensors, changed the sparkplugs, looked for leaks and so on.... Probably the injectors but I will solder the loom first I think
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Have you checked your spark plug leads??
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156 , pcv , valve

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