White deposits on spark plug tips

ganesh

ganesh

ganesh

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Joined
23 Sep 2006
Posts
2,399
Location
Wiltshire
Hello chaps,

Was checking over my girlfriend's car (2001 1.6 Honda Civic), and noticed that the tips of all the spark plugs are quite white. From a bit of research this seems to suggest the tips have overheated. The car is completely standard, no running issues and has never overheated.

The back story:
The car has had the check engine light coming on intermittently for a little while now, seems to be related to driving over bumps or rough surfaces. So I'm guessing a loose or faulty wire somewhere?

Thanks all.

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Ashy deposit on the spark plugs is usually down to misfiring in that cylinder. Also burning excessive oil in that chamber or crap fuel.

Whats obd2 say?
 
Those engines are lean burn and run hot by design. That spark plug looks normal for that engine.
 
Does it have an ODB2 port?

CEL on a Honda of that age could well be an O2/Lambda sensor, especially if it comes and goes.


Find the fault first thoigh, don't just throw parts at it :)
 
No OBD2 reader, it's off to the garage today to have the codes read.

I'd usually fix it myself, but without a reader and it being bloody horrible outside i'll let them do it.
 
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