Have these set of codes come up my 98 S70 T5, correct me if they're the wrong description...
P1132 - Indicates rich
P0234 - Engine overboost condition
P0138 - O2 Sensor circuit high voltage (Bank 1 Sensor 2)
P1332 - Knock sensor 4 low input.
These 4 codes have come up with the diagnostics tool! I noticed when driving with the open air filter, the turbo sprools up but as you're accelerating, you get the "dump" noise as if you'd come off the throttle but it does a little "dump" while accelerating then feels really hesistant. Doesn't feel like it is boosting 100%. Faulty actuator or? Thank you in advance!
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