PO105 map sensor circuit

[kingjames1]

Got this message this morning. Is it just the sensor or could it be something electrical with the circuit?

[MT-2500]

Originally Posted by kingjames1

Got this message this morning. Is it just the sensor or could it be something electrical with the circuit?

Year make and engine and mileage?

Codes do not say replace parts but to check it out.

As in code 105 it says check map sensor circuit.

[MT-2500]

OBD11 code or engine scanner code?
Engine scanner code 105 is map sensor performance.

First step is clear code and see if it comes back or if any other codes.

If it comes back get a repair flow chartbfor that code and go threw the repair flow chart and see where it takes you.

Let us know how it goes.

[kingjames1]

2003 trailblazer; 4.3 liter; 125,000 miles

The reason I asked is I also read this circuit is just for the MAP sensor and that was probably the problem. But MAP's cost 60-70 dollars and don't just want to blow the money if it is something else. (I've done that before.) Just making sure before I do anything. What other things are there to check? Vacuum?

[kingjames1]

repair flow chart

Where do you find these?

[MT-2500]

Originally Posted by kingjames1

repair flow chart

Where do you find these?

OBD11 code?
What engine and mileage?
First step is clear code and see if it comes back.
Any other codes?
Repair flow charts for codes can be found in.

Factory repair manual or.

http://www.alldata.com/products/diy/index.html

[MT-2500]

Can be several things.
You need to go threw the repair fow chart for the code.