I installed a new Wells MAF unit in my '87 tpi and there is now no closed loop operation. After the change the car has run really rich, 108 blm, so I shortened up on the injector constant. I tried reducing the timer times for closed loop operation and it still will not happen. I am using the 32bv001.ecu file, a PP2 and winbin to burn the 29c256 chip and WinALDL to capture the data. I am running a single wire O2 sensor. Any suggestions on how to get this thing back into closed loop would be helpful. Reminder that the car ran just fine until the old MAF went out and it was replaced with the wells su-145 unit.

Thanks.