Map Problems. Please Help.

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UnKn0wn

NAXJA Forum User

Location

UnKnown

• Nov 27, 2010

• #1

My Jeep: 99 XJ 4.0 aw4

Getting a Po1o7 and P1296 ( No 5 volt to map sensor )

Changed map sensor same thing.

Thinking it just isnt getting power.

Any suggestions?. I did search also.

Thanks
Jonathan

 

B

birchlakeXJ

NAXJA Forum User

Location

Melrose, MN

• Nov 27, 2010

• #2

UnKn0wn said:

Changed map sensor same thing.

Thinking it just isnt getting power.

Click to expand...

Best thing to do would be to verify if 5 volts is at the map sensor connector with a multimeter.

If 5 volts it isn't there, you need to keep that meter handy and try to figure out where you are losing the input power.

 

gradon

NAXJA Forum User

Location

DC

• Nov 27, 2010

• #3

A lot of those tb sensors run off the same 5v power supply. Try disco'ing one by one and you might find the culprit.

 

U

UnKn0wn

NAXJA Forum User

Location

UnKnown

• Nov 29, 2010

• #4

I got a MAP sensor from the J-yard, but it didnt work ( Bad prob. ).
Went to AdvanceAuto and put one on and didnt do anything.
I bought a Multimeter and i have 5vs at all sensors on the T-Body.

Any suggestions?

Thanks
Jonathan

 

Tim_MN

Freakish Hand Strength

NAXJA Member

Location

Minneapolis, MN

• Nov 29, 2010

• #5

Physically inspect the wires for chafed insulation, dirty connections or damaged/pinched wires.

 

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UnKn0wn

NAXJA Forum User

Location

UnKnown

• Nov 29, 2010

• #6

Ill keep looking into this, Got a buddy with a jeep like mine that is on his way. I know his map sensor is good, we are gonna swap it out to check

 

joe_peters

NAXJA Forum User

Location

Grants Pass, OryGun

• Nov 29, 2010

• #7

Ok, TEST for 5 volts AT the MAP sensor. Without 5 volts present you can swap MAP sensors until HECK freezes over and nothing is going to change.

 

87manche

NAXJA Forum User

Location

Ohio

• Nov 29, 2010

• #8

it may also be a ground issue, so make sure you test the sensor back into the harness, not to the chassis.

 

kastein

NAXJA Member

NAXJA Member

Location

Rainy side of Washington

• Nov 29, 2010

• #9

Also, for help searching... it's P0107 not Po1o7 (all numeric except the P.)

I would also bet on a bad ground or broken wire somewhere.

Where are you located? If you are within a reasonable distance of central Mass I might be able to help depending on urgency and whether you can bring/drive it to me or not.