hey all! my 03 R50 starts intermittently but when it won't it won't and no code. no problem with accessories or dash and headlights, all getting power. i was getting it to start with a jump so i put the voltmeter on the battery and it was a bit low at 12.5. also checked with it running and had a good 14.5 reading so i replaced the battery with an optima red top (the car sits a lot). still having intermittent start issues. i thought it was fine and drove to the store but it wouldn't start up again after shopping after about ten tries. with some help i bump started it and drove it home. when i got home and shut it off it started right back up again. i recently did a head gasket, valve job and some other stuff so things got jostled around but not finding and bad wires. the car runs amazing/like new after the work i did but only when i can start it. any thoughts?

 

Check ground connections -

 

thanks! i took a closer look and found the ground strap on the passenger side by the motor mount loose. easy peasy!