
All 8 installed and code P0304 lost (missing on cylinder 4). The SUV worked great for about 3 weeks. then I got a P0301 (missing on cylinder 1 _ glad I tagged and kept my old coils. Install one of the old coils and it won't be missing on this cylinder anymore. Put the Cly 1 coil on paper and came back a few hours later on there was something on the paper that looked like oil that must have leaked out of the spool 7 out of 8 is not bad but I don't know if only one spool can be returned and I will not take all back For a refund I will only live with 7 new and 1 old and my SUV is working great