John was great. My car wouldn't start and after some troubleshooting, I realized it wasn't producing a spark. I called Busted Knuckle and John came out and checked several things and then told me that I needed a new ECU (computer). He said he couldn't program the ECU but gave me some advice on finding someone who could. John is fast, explains what he is doing and honest. Total cost was $85 for the diagnosis and he even suggested that I check with my insurance to see if I had towing coverage. I didn't think I did, but found out I do.