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1.8 MX5 pinging under load
Posted: Mon Jan 19, 2015 9:06 am
by blindsay
I would appreciate any tips and suggestions on why my 1.8 MX5 1994 pings under heavy load please. In my ignorance I thought the timing may be manually adjustable as of old, but apparently not. My last 1.8 ran perfectly on standard 91 ROZ fuel and NEVER pinged even when thrashed, and I don't want to be forced to use 95 or 98 octane fuel - mainly since it is seldom available beyond major cities in Tasmania.
Re: 1.8 MX5 pinging under load
Posted: Mon Jan 19, 2015 9:11 am
by smy0003
Have you tried 98?
At least then you'd know whether the issue is low quality juice.
Re: 1.8 MX5 pinging under load
Posted: Mon Jan 19, 2015 9:12 am
by The American
Timing is manually adjustable, via the angle sensor at the back of the head (NA). Not sure about NB.
Re: 1.8 MX5 pinging under load
Posted: Mon Jan 19, 2015 9:24 am
by blindsay
Very many thanks for your helpful reply. I'll go looking.
Re: 1.8 MX5 pinging under load
Posted: Mon Jan 19, 2015 9:51 am
by beavis