A vacume leak could induse problems.... could they induse the problems as stated? I think I did hear a hiss last time under the hood.... good call men Ill check it out and get back.

The code 65 will not turn on the SES light. The vent and vacuum solenoid circuits have different codes. The 65 means that the PCM is reading bad values from the servo position sensor. Likely electrical, because the error happens when the sensor terminals are open, grounded, or shorted to voltage.

Thr problem sounds tune-up related to me. Could be the oxygen sensor, but problems like this are hard to diagnose without being by the car.

True... I have just done a full tune up except the 02..... should I just try it?

I don't like to recommend that parts be changed out blindly, because the best way to check them is by using a scan tool.

Your heated oxygen sensor may be a little pricey, changing it out would be at your own risk.

So i should go get my car scanned then eh? Your right I wouldnt want to pay that much if I didnt have to for the o2

Depends on the cost of the sensor. If it has never been changed before, you might try it if it is under $40. A diagnostic scan will cost you $75 or more.

So I would price the sensor and then change it if it is relatively inexpensive. Some people recommend that it be changed periodically. Don't know if it will fix your problem.

True.... it has been a while since it has been changed since the last time its been changed was 75k.... :? So... since im at 141k I think Ill give it a shot... Ill see what I can price it at...