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Check engine 22 and 34 on '95

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Old Jan 29, 2025 | 03:59 AM
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Default Check engine 22 and 34 on '95

Hey, my car is starting rough and driving particularly boggy after 5mins up to 7 / 8 minutes. Outside of this no abnormalities (cruise control works, idle is fine, engine temperature on dash is fine)
Check engine light readout gives 22 and 34 which refer to "Coolant voltage low-coolant temperature sensor input below the minimum acceptable voltage/Coolant voltage high-coolant temperature sensor input above the maximum acceptable voltage" and "Speed control servo solenoids or MUX speed control circuit HIGH/LOW-open or short detected in the vacuum or vent solenoid circuits or speed control switch input above or below allowable voltage" respectively.
It's a '95 4.0L AWD.
Any ideas where to look or what to replace?
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