ecu 128 pid 102 fail 03

2003 Freightliner Columbia series 60 12.7 as far as I can tell it's do to manifold pressure? My boost guage shows same boost as always is this do to bad manifold boost sensor? Check engine light comes on and off usually stays on under boost. Also coolant temp will drop to 0 then fan comes on then goes back to normal after check engine light turns off.

 

No boost leaks I get 30 psi full throttle what's happening is as soon as coolant temperature crosses 175f check engine comes on oil pressure goes from 45 psi to 65 fan is on and on rare occasion it cuts the power. I get like 3-4 codes all pointing to temp, manifold pressure, fuel pressure , air charge temp and on rare occasion low oil pressure. To me it seems like a ECM issue even if there is a bad wire it would always cause an issue and not when temps starts to go above 175. I can cruise all day long without a problem coolant as long as temps stay under 175

And this happens only while driving I can idle until fans come on and no issues

 

Today went to pick up a trailer and while bob tailing i get check engine light on coolant and oil pressure drops to 0 fan comes on but it runs normal. I get 5 codes

ecu 128 pid 172 fail 03
ecu 128 pid 174 fail 03
ecu 128 pid 175 fail 03
ecu 128 pid 110 fail 00
5th code
Ecu 128 pid 100 fail 00
Just got another new code
Ecu 128 pid 102 fail 03

forgot to write down the 5th one i checked wires took ecm off checked battery shows 3.6v. i took few days off to check all the grounds check pins to ecm check all cables again. Any one got any other suggestions? if i can't figure it out the only thing left is to send ECM for testing