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02 grang cherokee throwing 2 codes p1296 and p0138. how do I…

Customer Question
02 grang cherokee throwing...

02 grang cherokee throwing 2 codes p1296 and p0138. how do I fix this? sounds like a ground problem

Mechanic's Assistant: Just to clarify, what's the exact code? And have you tried to reset it?

Just put in new pcm and inhibitor and tumbler. lite just came on

Mechanic's Assistant: What is the model of your '02 Jeep?

Grand cherokee 4.0 with ac and 4x4

Mechanic's Assistant: Are you fixing your Grand Cherokee yourself? What have you tried so far?

I just told you everything

Submitted: 3 months ago.Category: Jeep
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Customer reply replied 3 months ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call.
Customer reply replied 3 months ago
Let me know if you need more information, or send me the service offer(s) so we can proceed.
Answered in 9 minutes by:
3/30/2018
Jeep Mechanic: Tim Mohr, ASE MASTER TECH replied 3 months ago
Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: Jeep
Satisfied Customers: 16,608
Experience: 30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
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Hi, my name is ***** ***** you checked for 5 v reference signal at the maf sensor yet?

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Customer reply replied 3 months ago
maf sensor
Customer reply replied 3 months ago
maf sensor?
Jeep Mechanic: Tim Mohr, ASE MASTER TECH replied 3 months ago

yes, the mass air flow sensor.

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Customer reply replied 3 months ago
oh I forgot to tell you, the jeep stalls all the time. have put in a fule pump, crank sensor and tune up
Jeep Mechanic: Tim Mohr, ASE MASTER TECH replied 3 months ago

you need to check the 5 v reference signal at the maf sensor if it is good, then replace th maf sensor,Tim

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Customer reply replied 3 months ago
there is no maf on a 4.0 jeep
Jeep Mechanic: Tim Mohr, ASE MASTER TECH replied 3 months ago

My mistake, its a MAP sensor, manifold absolute pressure sensor, you need to see if one of the wires at the MAP has 5 volts, with the key on,sorry for the confusion,Tim

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