ok, havn't had too much time to devote to this but..... here's where i'm at.

got the efi live going, did a log tonight, logged every maf pid there was and all the standards as well as the evap canister purge solenoid [which is showing activity]

i'm showing 0 maf activity . air flow rate is stuck at .21 lbs p/min , failing low freq tests, showing 0 hz maf raw frequency.

i getting what appears to be accurate iat temps so i'm guessing the part of the sensor that reads that is ok but the other is shot. seems for the iat to work the sensor is getting voltage so i guess a new one is in my future.

any issues with the sensors autozone sells ? havn't checked the dealer price, if it's not much different i'll go oem. checked the price on the wifes bmw when i was troubleshooting it, dealer wanted $360, online bmw part number $300 , exact same bosch part number for a land rover $ 140. any tips are appreciated.

btw, the "whipple system" i have is essentially just their sidesaddle compressor and that's it. i installed 8.1 marine injectors and bypassed all their electronic garbage [i paid through the nose for it and it never worked right so i feel i have the right to call it what i please]. intake manifold is unchanged, solonoid sits where they all do.