Mazda Repair Questions? Ask Mechanics for Answers ASAP
Welcome to JA. My name is***** am a fully qualified vehicle technician with over thirty years in the trade. I will be happy to assist you today. Hopefully we can get this resolved quickly.You will receive an offer of a phone call by the system, this only needs to be accepted if you wish to speak to me, I can otherwise continue to answer your questions via the thread.The data I have for your engine suggests a gap of 1.1 - 1.4mm and I would suspect with iridium spark plugs that 0.8 would be too small a gap.
The code P0300 is a random multiple misfire and may be due to the plug gap but I would say that the 1.1mm gap is the norm in your engine.
I hope this answers your question but I want you to be 100% happy with the answer so do please feel free to ask any further details by replying to this thread.Thank you for using Just AnswerSteve
Nice to talk.
As confirmed the gap of the NGK Spark Plug ILKAR7L11 fitted to your Mazda MX5 should be 1.1mm with a tolerance up to 1.4 mm
It was a pleasure to assist you today. If you have any follow up questions then please let me know. I will reply as soon as I can to help with any further queries.Steve