1991 Mazda Miata Problems Low Power Driving Changed Gn10047 Ignition Coil

1991 MAZDA MIATA
193,000 MILES
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Problems: low power when driving.
I have changed the GN10047 ignition coil and installed new NGK spark plugs. But still have same problems. When I drive it and turn on the A/C the power reduces even more. Can you answer my problems with my 1991 Miata MX5?
Oct 18, 2012 at 8:46 AM
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HMAC300
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  • 48,601 POSTS
scan for codes and check fuel pressure first. then check vacuum at idle if 15" or below suspect clogged converter
Oct 18, 2012 at 9:54 AM
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