did some welding now no start condition.

I still disagree. Welding ground should be placed as close to the work as possible. So I put the clamp on the front subframe and try to weld on the rear...Current has to travel thru various body parts linked by rusty bolts, brake line, exhaust pipes, E brake cable or wiring to complete the circuit. I've worked as a welder 14 years and now as an electrician. Ain't hatin... Just sayin....:burnout:
It's a good practice to get into the habit of placing the ground clamp close to your work as late model ecu's can be pricey. You only have to buy one to learn and it's per I-Car recommendations.