INTERMITTANT HESITATION PROBLEMS B20VTEC P28

[integraR]

GOT FULLY BUILT N\A B20VTEC OBD1 WITH P28 STAGE 2 TUNED.I HAVE S200 UPGADE BUT HAVE NOT INSTALLED YET .MY PROBLEM IS AT CRUISING SPEEDS, PART THROTTLE MY ENGINE HAS A SEVERE HESITATION AND LOSES POWER .I HAVE A PLX M-300 O2 SENSOR AND IT READS LEAN LIKE 19 TO 20 TO 1 WHEN THIS HAPPENS .I HAVE NO CHECK ENGINE LIGHTS AND WHEN I TURN THE IGNITION OFF THEN BACK ON THE ENGINE IS NORMAL IT DOES THIS HOT OR COLD AT ANY CRUISING SPEED BUT IT DOES NOT DO THIS ALL THE TIME. MY TPS VOLTAGE IS .517 VOLTS CLOSED OR COULD IT BE MAP RELATED? ANYONE HAD A PROBLEM LIKE THIS?

[DaX]

Not sure if it will fix your problem, but your TPS voltage should be 0.45-0.49V closed [preferably at the lower end].