If 32 is for Knock Sensor, I'm not too sure what you mean by 34 for the Exhaust thing. What's the exhaust thing. If the ECU throws 32, shouldn't you follow the steps for checking the knock sensor? It'll have step by step instructions that probably begin with continuity and voltage tests.
Cruise control is a good question...if I remember correctly from my FSM, it's got some sort of link to the VSS and TPS. If it's getting a voltage based signal, you can try disconnecting the cruise control cable (leave attached to bracket), tapping the TPS signal to use as the voltage differential, starting the car and connecting the vaccum line, then manually adjust the throttle (changing the voltage). If the cruise control cable moves..then it works? This is some completely harebrained idea I just thought up based on my understanding of car electronics, so no flaming please
