Mechanical Problems & Technical Chat - po122 code

po122 is what the scan shows the problem to be on my 2000 ex. it comes on just b4 i feel a sudden loss in idle/pressure from my engine either while idling or moving. i do have an after market intake manifold and throttle along with a new tps. another problem i have is instead if he stock 7250 rev limit on my car, it does 6800 and cutts off. top speed is only 112 now instead of 120. any1 know what the problem would be on that?....could cam have to do with it? o yea and about 5500 rpm's it sounds like its open header...its very loud! dont like it

Maybe the TPS needs to be calibrated or there is a problem with the TPS circuit? The available service manual details how to troubleshoot the TPS circuit.

well now ny guess is the tps is positiond wrong on the throttle....the stock one is riveted in but im using a skunk2 throttle with an obx tps..., also i notice the noise quiets down when my vtec kicks in...then it gets loud after 6rpm again