code explanation please

[strokefreak]

hooked up the scangauge and pulled two codes today.

p0236 Turbo Boost Sensor A Circuit Performance

p0470 Exhaust Back Pressure Sensor Circuit Error

i found the codes "meaning", but have no idea what they mean. any help is appreciated.

 

[Tom S]

I see that 236 code alot when I hook up to trucks. I think it is from when the truck makes boost past the expected range. On the 470 is your exhaust backpressure sensor plugged in even?

One of the things I look at with AE before the motor is started is to compare the baro, ebps, and map to see if they all read about the same which they normally should.

Tom

 

[strokefreak]

not sure on the backpressure switch. ill take a look this evening. thank you sir!