What did I do wrong? I have a 165 ecm running apyp $6E with the wideband patch. We tuned the new maf by locking in open loop with the coolant temp enable temp set at 255. Reset that to 180 to reenable closed loop. It goes into closed loop, and shows the O2 sensor is ready BUT learning shows disabled and the integrator and blm are locked on 128. No fault codes.
Has anyone seen this before?

 

Copy the MAF tables back into the original base ROM file you started with ($6E with the wideband patch), or into another stock non-wideband $6E file and see if it runs closed loop.

GD

 

Thanks. I am beginning to think something undocumented may be corrupt in my current bin. I’ll give that a try and report back