hi to all!!! im a galant beginner and having problems on my combustion....i there anybody help me fix it....i've already replace my distributor assembly,spark plugs and mass air flow, but still the combustion isn't perfect.... my spark plugs shows black smoke carbon and also at my tail pipe...dexter.phils.
Quoting Dexter: mine is E55A 2.0 SOHC 7th generation
Then unfortunately this forum will probably be of little help. This forum caters towards the 6th generation E38A and E39A Galant VR-4's with the turbocharged DOHC 4G63 engine. Your E55A has the SOHC 16V 4G63.
I would look at the basics like the camshaft and ignition timing, air filter condition etc. I believe the PH models don't have cat converters, and instead have a fuel mixture trimpot attached to the firewall somewhere - perhaps that was altered causing it to run really rich.