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I am having trouble setting up a base map with ecutek on my 2005 mazda MX5. I am working with Dynotronics in the US using e tune flashing but we are not making any real progress. The engine has been modified for forced induction so is obviously a long way from the oem map. We have had 4 tries with maps being modified each time but with limited success to even get a decent idle . The problem appears to me to be with injector set up. How can I get detailed specs on my injectors . They are Siemens 668 cc rated but its hard to find any info on them. Kevin.