LTX_Alex

Starting two weeks ago my car would suddenly loose power for a split second entering the on ramp to the freeway but the power came back on. Now, when it looses power everything works still (gages, radio, lights interior lights, etc). I only loose power for a split second and once again the power comes back on. Only happens while driving only. Car has 347k miles and I was doing some research around here and I came across the TPS sensor could be bad without throwing a code. So far it's been happening 3-4 times a week. Also, only codes I have are P0140, P0160 and P0405. No codes showing for this weird loss of power. Any ideas? '99 T/A A4.