How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask sprinkles08 Your Own Question
sprinkles08
sprinkles08, ASE Certified Technician
Category: Chrysler
Satisfied Customers: 22827
Experience:  ASE Master & Advanced level certified, Chrysler Master Certified, Trans and Hybrid Specialist
9825021
Type Your Chrysler Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

I have a 2008 Chrysler Pacifica that is showing odb2 codes

Customer Question

I have a 2008 Chrysler Pacifica that is showing odb2 codes c121, p0300, and p0339. I have replaced the spark plugs and boots, and the crankshaft position sensor. Do you have any ideas what would be causing these codes?
Submitted: 7 months ago.
Category: Chrysler
Expert:  sprinkles08 replied 7 months ago.

Hello and welcome to JustAnswer!

The root cause of the issues is the loss of crank sensor signal. P0339 sets when there is an intermittent signal from the crank sensor whether it's due to the sensor itself, wiring or connections, a damaged flexplate or possibly an internal powertrain control module issue (not likely).

What was the physical location of the sensor you replaced and where did the replacement sensor come from?