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I reset the ECU by turning the key on, removing the two ECU fuses, turning the key off after 10 minutes, then replacing the fuses. SES light turned off. Car started up great. Drove for approx. 1 minute, then it went back to driving like ****.
SES light came on again after approx. 3 minutes, then blinking shortly after.
Codes listed on post #1:
P0420 - Original code I've had for over a year (Catalyst efficiency below threshold ...)
P0300 - Random misfire detected
P0140 - o2 circuit blah blah (from when I disconnected the driver side downstream o2 sensor)
Have not re-checked to see if there are any new codes.
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-Rick (Photographer)
- 2001 Trans AM WS6 - M6, ORY, Borla catback, etc.
- 1998 Trans Am - M6, functional Ram Air hood, Flowmaster, 3" QTP E-cutout, ORY, K&N FIPK, 3.42's, LSD, Hella 60mm Projectors, 4300K HID's & more.
- 2003 VW Golf TDI - Turbo diesel @ 50 MPG highway
- 1998 Jeep Grand Cherokee 5.9L(ZJ) - 4.75" lift, 32" MTZ's, armor, etc.
Last edited by GhostDakota; 11-29-2012 at 11:22 AM.
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