91L, last few days throttle seems a bit jumpy but not really, today drive around a sweeping curve, check engine light comes on. I stop at a light and idle is jumping from around 900 up to 1500 and back down. I get back home and decide to check intake hose and while the clamp to the plenum seems loose I can see no cracks. I take off hose to check for oil blow back, while some, not too much. AFM does not have much residual but I clean and spray with electrical contact cleaner. Clean and check by pass hoses too. Put everything back together and now it won't fire. Just cranks. Went to pull code and I get 3333. Never heard of this. Any thoughts gang?