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K. Wiggins
K. Wiggins, ASE Certified Technician
Category: Chrysler
Satisfied Customers: 2789
Experience:  AA in automotive Technology, 15+ years in the trade
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Sputtering, back fire, loss of power, check engine light

Customer Question

sputtering, back fire, loss of power, check engine light constantly on, and sometimes blinking, and when the engine stalls at a complete stop, the throttle body control light on the dash also comes on. Changed all O2 sensors, MAP sensor, but the P0660 code will not go away. I think we have narrowed the problem to the manifold tuning valve, but I'm not convinced.
JA: Does the light stay on, or does it blink?
Customer: check engine does both.
JA: What is the model/year of your Chrysler?
Customer: 2006 chrysler 300 base model 2.7l
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: yes.
JA: Anything else you think the mechanic should know?
Customer: as stated above, we've changed all o2 sensors, MAP sensor, and spark plugs
Submitted: 9 months ago.
Category: Chrysler
Expert:  K. Wiggins replied 9 months ago.

Hello, this is indeed an issue with the MTV or operating circuit. I'll post troubleshooting info below. If I can help further just reply back.

Customer: replied 9 months ago.
Ok, I found the piece and replaced it. Do I need to reset the computer or anything for it to act right again?
Expert:  K. Wiggins replied 9 months ago.

You'll need to clear the codes with a scan tool

Customer: replied 9 months ago.
Did that. Still the same issue.
Customer: replied 9 months ago.
Any other suggestions?
Expert:  K. Wiggins replied 9 months ago.

You'll need to go through the troublechart I sent and check the wiring for opens/shorts. IF wiring passes it's going to be an ECM issue

Customer: replied 9 months ago.
I replaced the wire when I replaced the mtv
Customer: replied 9 months ago.
ECM means?
Expert:  K. Wiggins replied 9 months ago.

Engine control module

Customer: replied 9 months ago.
The computer?
Customer: replied 9 months ago.
Will having it flashed help or will I need to replace it?
Expert:  K. Wiggins replied 9 months ago.

It'll need to be replaced and the new one flashed.