2010 MS3 Idling rough, Doesn't make vacuum

[Vince Scatena]

Year/Make/Model: 2010 Mazdaspeed 3
Mileage: 140k
Location: Lima, OH
Concern: Barely idles, Doesn't make vacuum, No CEL, Doesn't smoke, I did find corrosion on ecu wondering is that is my only problem.
DTC's: None
Modifications: Freshly built motor, BNR s4, Corksport HPFP, Deashworks In-tank pump, 3in intake, Catless DP, Full straight pipe
ECU/Tuning Software: COBB
Tuner: Me
Is the concern intermittent? No
Can you duplicate the concern? Yes
Recent Repairs: Motor is Fresh have about 300miles on it, All new VVT, New Injectors, I've tested cam and crank position sensors, Mechanical Timing is Good, Grounds are good, Exhaust isn't plugged,
Correction:

I've Attached a datalog and pictures of the ECU

 

[Easter Bunny]

Have you looked for leaks on the entire I take tract?

 

[Awafrican]

Sounds like a leak, ground issue or throttle body isn't connected to harness or poor connection to MAF. Dirty MAF also never helps

 

[Vince Scatena]

Sounds like a leak, ground issue or throttle body isn't connected to harness or poor connection to MAF. Dirty MAF also never helps

I checked for vacuum leaks, didn’t have any. I also tested the booster. And cleaned the MAF. Didn’t see a change.

 

[Easter Bunny]

It has to be either a leak or a bad maf

 

[Vince Scatena]

It has to be either a leak or a bad maf

I’ll pick up a new MAF tonight and see what happens.

 

[Easter Bunny]

Check the wiring, check the connector and check that it's not installed backwards first

 

[Vince Scatena]

Check the wiring, check the connector and check that it's not installed backwards first

I tried and new MAF and checked the connections but no change

 

[Easter Bunny]

You need to inspect all of the wires coming from the maf

 

[Raider]

I’ll pick up a new MAF tonight and see what happens.

OEM only. Aftermarket is trash.

Advice so far from above is all helpful too.