Originally Posted by EGhatch-dueceX2

Really? 185 is low? I ask because ALLDATA says Usdm h22a1 should be from 135-185psi. This is why I assumed they were good numbers, not to mention the fact they all read 185 excatly. I would think it would be a heck of a coincidence that all 4 cylinders have the same amount of leakage. Just for arguement sake, let say I have a bent/chipped/warped etc. valve, that would be a mechanical failure which would show the symptoms constantly, which its not. It only acts this way when warmed up, when a car is at operating temp. It goes into closed loop which is when the sensors etc come into play. this is why I am almost positive its is a sensor/ ecu problem.

With that said, I have some new discoveries to share. I went to the junkyard yesterday and surprisingly found a complete, stock, VX hatch. What I noticed was the MAP sensor shares the same part number as the one in mine, are the MAP sensors more or less universal or could that be a potential problem?

Also, I opened up the ECU jus to find out anything about the chip....its a SST 27SF512. I did a little research on it and found that it is a reprogramable chip. What would I need to just put a stock h22 basemap on it?