ENGINE 'SURGING' DURING SMOG TEST

1993 Jaguar XJS

Tiny

martynw

August, 26, 2011 AT 6:56 PM

My car failed SMOG a few weeks back (the Hydrocarbons were too high). I just had 2 new catalytic converters put in and I took it for a retest. The tester was not able to keep it within range of required speed as they say the engine kept 'surging.' What could be wrong? This problem didn't seem to be there for the first test.

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1 Answer

Tiny

Docfixit

August, 26, 2011 AT 7:11 PM

Have O2 sensors checked if they are not providing correct air/fuel info computer will hunt and cause surge

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