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Intermittent engine warning light

Stallingrad · 2017-10-12 15:30:06

2002 Yaris 1.0 Engine warning light erratically comes on and off, no other symptoms, car is running fine. Car was just serviced with new oil, filters and plugs. They didn't highlight any issues at the time bar a manifold gasket which is blowing very slightly. Any ideas?

12-10-2017 3:30pm

#1

Stallingrad

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2002 Yaris 1.0

Engine warning light erratically comes on and off, no other symptoms, car is running fine. Car was just serviced with new oil, filters and plugs. They didn't highlight any issues at the time bar a manifold gasket which is blowing very slightly.

Any ideas?

0

Comments

#2 12-10-2017 3:45pm

Toyotafanboi

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It could be that. I think they are prone to oxygen sensors failing too which you usually can't feel in the driving of it.

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#3 12-10-2017 7:19pm

nd

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Most corollas and yaris's of that age have a p0420 "catalytic system efficiency below threshold" code. But still pass the emissions test no problem.

i'd get myself a cheap code reader. And if it is that, don't worry about it.

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#4 12-10-2017 8:09pm

Toyotafanboi

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Yeah, my Celica had that with a check engine light. Always passed the NCT etc.

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#5 13-10-2017 8:56am

Stallingrad

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Thanks lads!

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