High idle speed with P0505 and P0300 code

[Ahad]

This is a corolla 2001, with idle speed 1500 RPM and P0505/ P0300 code.
Opened IAC valve and cleaned and reinstalled with new gaskets, confirmed at switching on, it initialize to close/open/ half open, but still problem persists.
Found that my TPS is out of range anyway, replaced TPS, but still problem is there. Meanwhile even with brand new TPS, still it shows from 11% to 40%, but the manual says it should show at least 64% while throttle completely opened.
Is my new TPS bad as well, Do I have a hareness issue from TPS or IAC to ECM?
All this problems started after removing Throttle body out for cleaning. I reinstalled that several times and now I'm positive that I installed Throtle body in right way with proper torques. Wondering one of cables (TPS or IAC) is being loose at connector.
Any advise appreciated.
Thanks

[TenZen]

well check the TPS (the new one) and see what comes up. then you have a random/muiltiple misfire. change the wires and plugs. I would just buy a new IAC valve. Also check the MAF sensor just incase.

[Ahad]

I just remembered I had used grease on TPS and IAC and O2 sensor connectors. The grease type that I had used was a carbon conductive grease. it was making a shortage between the pins in connector. cleanded all 3 connectors from grease and problem fixed. Idle speed back to normal 700 RPM, but now I have no O2 sensor output, which I had before cleaning grease. I think I have to repair O2 connector now, any ideas on this one?