tj_tatum
Probationary Member
- 2
- 0
- Feb 8, 2017
-
allen,
Texas
97 420A with no mods; resetting the ECU to get all the monitors ready for inspection. the car will randomly get the p0300 - 304 pending and eventually lights the CEL. The scanner i have only gives freeze frame data. no matter if im driving or sitting still the fuel trims show -100, engine coolant temp -40(its 70 degrees in Texas today); rpm and speed show 0. I have cleaned ground connections and checked ECU connections. could this be an ECU on the way to going out? note the car runs fine and doesn't hesitate or anything before this happens