The car had symptoms that led me to believe I had a bad coil pack - stuttering, misfiring, trying to die - but I had no luck with a new coil pack in any cylinder.
The car has 230,000 miles, so some of these codes may be old! Here's where I'm at so far:ġ6804 - Catalyst System Bank 1: Efficiency Below Threshold - catalytic converter (there is no cat on the car)ġ6795 - Secondary Air Injection System: Incorrect Flow Detectedġ7965 - Charge Pressure Control: Positive Deviation - Limp Modeġ7705 - Pressure Drop Between Turbo & Throttle Valve (Check D.V.): Intermittentġ6518 - 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)ġ6687 - Cylinder 3 misfire (I was pulling off coil packs as it was running)ġ6686 - Cylinder 2 misfire (same as above)
Hey - I got it working! Thanks everyone for your help.
