I Did The F22a6 Swap Into My Brothers 91 And It Did The Same Thing. But I Had The Pt3 Ecu. So I Got A Pt6 Ecu Which Is For 92-93 Ex And The Car Idle Perfect. It Still Threw A Code 1 Which Is O2 Sensor Heater. So I Need To Replace The Sensor. Are You Running The Pt3 Or A Pt6 Ecu??
The beginning of a new era............................
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