Matched context for instability and preignition

The page lists matched contexts for instability and preignition.

Share - instability	Share - preignition	Phrase
5.57%	11.86%	cause {instability or preignition} [perform operation]
2.07%	27.19%	{instability or preignition} [does] occur
3.97%	7.90%	{instability or preignition} problem
2.19%	7.63%	prevent {instability or preignition} [perform operation]