Runs rough, misfires, hard starting, stalls when stopped
My car has 200000 miles.
My car has an automatic transmission.
Hi - the diagnostic trouble codes you mention are: 33- Manifold Absolute Pressure circuit/sensor malfunction: wiring open circuit/shorted circuit to positive, hose blocked/leaking, MAP sensor, 34- manifold Absolute Pressure circuit/sensor malfunction: wiring shorted to ground, 42- ignition control module circuit problem (running on default timing curve). These collectively sound like engine wiring harness issues, or perhaps a bad engine to chassis ground, or engine/chassis to battery ground issue. I recommend a running rough inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.
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