So I found an 02 LX (non-vtec) with a blown timing belt for cheap. So I bought a motor after an 01 EX(vtec) and droppped it in. I continued to use the engine harness from the LX and just decided to not use vtec as this was something I was throwing together as a beater.
So I have -2002 LX
-2001 EX longblock
-2002 engine harness
-EX intake manifold
-LX exhaust manifold

I am having high idle, then surging idle. Throwing codes P1505 and P0505.
Manifold vaccum is at 16 in/hg with a gauge. Had 2 IAC valves, both cleaned and showed no change. When I look into my scantool the MAP only reads about 8 in/hg. Tried 2 used MAP sensors with no change. This thing is really kick me in the nuts. I haven't started throwing parts at this thing since its only a beater. I had 2 longblocks with sensors and have swapped them out with no change.

Any help gladly appreciated...

 

TPS?

 

how do I check it? It didnt seem to move when it was idling rough, but tthat doesn't mean much.

 

If the IAC is good, both those codes boil down to an vacuum leak. Check PCV valve, PCV hose, EVAP canister purge valve, throttlebody and brake booster for air leak(s).

Check the connections at the MAP sensor and ECM/PCM connector A19 (green/red). If the connections are ok, back-probe A19. You should have 3V with the ignition ON (II) and about 1V at idle (depending on engine speed). If you're not getting the correct voltage the MAP or the green/red wire is bad. If you are getting the correct voltage then the ECM/PCM may be bad.

If you pull down the glovebox and are looking at the ECM/PCM in the dash connector A is the bottom connector.

 

Thanks for the voltage specs on the MAP. I'm getting 17 in/hg on the manifold so I think my vaccum is fine and I get the clicking sound on the pcv. I will check the voltage when I work on the car.