engine bogs under load
 

have an 84c10 with 5.3/4l60e swap DBC
truck bogs down under acceleration. idles fine but will only speed up gradually and falls flat when I step on it. fuel pressure is steady at 58psi

things I have changed:
MAF
Fuel pump
fuel regulator
throttle body
fuel filter
complete wiring harness

codes that just popped up recently are:
p0107 manifold absolute pressure/ barometric pressure circuit low
p0342 camshaft position sensor A circuit low bank 1 or signal sensor
p0740 torque converter clutch circuit/open
p0753 shift solenoid A electrical
p0758 shift solenoid B electrical

what would you guys check 1st?

Re: engine bogs under load
 

The map sensor

Re: engine bogs under load
 

I'd be looking if there is a circuit common to all those sensors.

Re: engine bogs under load
 

Gm has specific instuctions on how and where the map sensor is located.

Re: engine bogs under load
 

I had some issues long ago and it was tied to a blown fuse. It wasn't like a group of coil packs or anything but enough to cause similar issues. Start there with the simple stuff. or even a loose ground.
Dave