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XfireZ51 · 04-05-2014

Some of the sootiness may be due to the issues you described when you first got the car. I would get new plugs and take a look after a few drives. If you can do a scan, see where the BLMs are.

04-05-2014	#23
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: 1991 ZR1 ODB1 Port Location Some of the sootiness may be due to the issues you described when you first got the car. I would get new plugs and take a look after a few drives. If you can do a scan, see where the BLMs are.