Hi all,
Got this code today P0111 when my check engine light came on. I've been noticing a little acceleration and poor gas mileage issues. So, took it to autozone to have them pull the code, and they pointed to the MAP sensor. So, I'm trying to find it on my 03 XC-70 2.5L Turbo, I DID find the Boost Pressure Sensor on the intake?? hose that is located near the driver's side headlight. I confirmed the part number. So.. where is the dang MAP sensor?
Also, I cleaned my MAF checked the wires, made sure the air filter was clean etc... Does anyone have a working link to an engine diagram that might have various parts listed? I'm much more familiar with older 240's so these "newer" cars have me a little confused.
Thanks!!

Hi all, Thanks so much for getting back to me.
So, yes its a turbo, and after i did a little more research learned that this model year 03' apparently only has one sensor on the intake from the intercooler to the throttle body. Finally got ahold of our family volvo mechanic and he said the earlier years, like 98 -02?? had two sensors, the MAP and the Boost Pressure sensor. He was pretty confident that my year only had the BPS with the IAT sensor built into it. So after work I'll try cleaning it and checking the wires, since that was easy enough to find, (by the drivers side headlight in the intake tube right next to the intercooler.) I'll try to post some pics later tomorrow or this weekend and I'll mark the post as solved if I get it working.
Thanks again!

Also as a side note; Even though Autozone suggested the MAP sensor, they actually pointed to the Boost Pressure sensor in their suggested parts list.. really just brought it there to read the code anyway.
Thanks!

P0111 is a generic code for the Intake Air Temperature(IAT) malfunction. You didn't specify if the engine was Turbo or NA.

The IAT sensor is located next to the throttle body. It should be removed, cleaned, and the plug cleaned and coated with di-electric grease and tested.
--
Keeping it running is better than buying new

The OP designated a turbocharged engine in his first post and alluded to boost pressure in his second.

What is the test for the IAC sensor and its plug?
Does the IAC have a specced ohm/continuity reading or some other measurement?
Is the plug simply a 5V hot and signal line to the ECM?

I didn't mean bench test, just cleaning and inspecting the wiring plug for corrosion and putting it back in and see if the code goes away.

I don't have a linear graph to look at the specs for the IAT sensor.
--
Keeping it running is better than buying new