Originally Posted by SC400slide
Do the fuel pump ECU 12v mod?
Please stop giving advice, it's never on par with the actual problem ANY time you answer.
Ecu's can go back and forth like this. My gf's car would do this, and as soon as she decides to bring it to me it would run normal, CEL act right, everything. Until one day I was driving it and it quit for good. I'd get a spare, everyone that dailies one of these things should have a spare ecu just in case. These things tend to get exposed when summer rolls in. I did a couple gte ecus and an sc400 ecu a couple summers ago right after our first real heat streak, within 2 weeks.