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I've got a blinking cel. Car has trouble starting, if it…

Customer Question
I've got a blinking...

I've got a blinking cel. Car has trouble starting, if it will start it idles really low and shakes, and might die out. I've changed spark plugs and iat. I'm am getting code p0300 and p0113

Mechanic's Assistant: Does the light stay on, or does it blink?

Blink

Mechanic's Assistant: What is the model/year of your Dodge?

2007 Dodge nitro

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

3.6

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Yes, changed spark plugs and ignition coils, and got a new iat

Submitted: 3 months ago.Category: Dodge
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Answered in 2 minutes by:
3/25/2018
Dodge Mechanic: Mopar Certified, Dodge Technician replied 3 months ago
Mopar Certified
Mopar Certified, Dodge Technician
Category: Dodge
Satisfied Customers: 11,593
Experience: 24 Year Chrysler/Dodge Certified Specialist
Verified

Welcome to JA my name is Mark, and I'll be more than happy to assist you, Please allow me a few minutes to review your information. Thank you.

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Dodge Mechanic: Mopar Certified, Dodge Technician replied 3 months ago

Are those the only 2 codes that you have?

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Dodge Mechanic: Mopar Certified, Dodge Technician replied 3 months ago

Thanks for the reply.

Ok. Since you have already done the ignition system, the next step would involve testing the fuel pressure and also the fuel quality. Contaminated fuel will always set this P0300 code. If the fuel pressure and quality are ok, then the next step would be to check the engine compression. Something like a broken valve spring, dislodged rocker arm or burnt valve cause also cause this so we need to check the integrity of the engine by checking the compression.

I would also like to check the integrity of the exhaust system and see if it maybe be restricted such as a plugged up converter. If you get to this point without finding your answer, unbolt the exhaust from the engine or remove the upper 02 sensor..........whichever is easier, and see if that helps.

So, there are some ideas for you to check, let me know if you need anything further. Thanks.

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Customer reply replied 3 months ago
Okay I'll try that. Do you think the MAP sensor may be malfunctioning?
Dodge Mechanic: Mopar Certified, Dodge Technician replied 3 months ago

We don't see alot of MAP sensors failing, especially without setting a fault code, but yes, that is still a possibility.

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