[BrianJ]

I have just put my car back to stock and I'm experiencing
erratic idling problem. The idle will bounce between
600-800 rpms constantly. The plugs are 6097's, gapped
at .042. 1000 rpms on above, it's fine. Seems to boost
fine. Checked all the VSV& IC hoses. Can anyone help?

 

[AZSupTT]

Describe the Synthoms

More experience Guys Here will Help but they will Ask for more description of the synthomes...In my case i needed to clean the trotle and there where some minor leaks in the hoses......

 

[1_MAD_DAWG]

All of the NGK 3330 or the 6097's have a weird idle as compared to the stock plugs. If you want your stock idle..you need stock plugs.