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check engine light stay on and flashing

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Old Nov 30, 2011 | 04:03 PM
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Default check engine light stay on and flashing

On my 2006 Ram 1500 Hemi, the check engine light stay on after the engine starts and is flashing. any idea from where this comes from?
 
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Old Nov 30, 2011 | 04:16 PM
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Originally Posted by benoit
On my 2006 Ram 1500 Hemi, the check engine light stay on after the engine starts and is flashing. any idea from where this comes from?
ANY code ? usually flashing check engine light means bad cats.
 

Last edited by adventurer; Nov 30, 2011 at 05:48 PM.
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Old Nov 30, 2011 | 04:18 PM
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Other members can certainly correct me if I am wrong, but a CEL that is flashing is indicative of a serious problem and the vehicle should not be driven. You will need to get the code(s) to get an idea where the problem lies in the truck.
 
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Old Nov 30, 2011 | 04:22 PM
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Flashing cel means dangerous misfire, happened on my Ford wasn't the cats it was plugs n wires they were new too but el cheapos. Then I'd look at cats imo.
 
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Old Nov 30, 2011 | 04:37 PM
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If you have no means to pull the code, get you to your nearest auto parts store and they will pull the code for free. Report back here with the code and we can tell you what's going on. Do not use the truck other than to go get the code read until you know exactly what the problem is...
 

Last edited by HammerZ71; Nov 30, 2011 at 04:42 PM.
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Old Nov 30, 2011 | 04:40 PM
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If the “Malfunction Indicator Light” is flashing,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.


Page 428, 2006 dodge ram manual, and as hammer said pull the codes
 

Last edited by adventurer; Nov 30, 2011 at 04:45 PM.
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Old Nov 30, 2011 | 05:33 PM
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will pull the code and report soon, thanks
 
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Old Dec 1, 2011 | 10:40 AM
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Originally Posted by HammerZ71
If you have no means to pull the code, get you to your nearest auto parts store and they will pull the code for free. Report back here with the code and we can tell you what's going on. Do not use the truck other than to go get the code read until you know exactly what the problem is...

I agree with Hammer. If it's flashing it must be dealt with ASAP.
 
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Old Dec 1, 2011 | 03:10 PM
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The codes are :
P0201 injector circuit malfunction - cylinder 1
and
P0300 Random/multiple cylinder misfire detected
does it means the injector of cylinder one (where is the A?) has a problem?


 

Last edited by benoit; Dec 1, 2011 at 03:15 PM.
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Old Dec 1, 2011 | 03:25 PM
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The P0201 probably popped first and was followed by the P0300 after a second misfire was detected in another cylinder.

I would have stayed on the possible plug/injector on the first cylinder theory until the P0300 popped. First thing I'd do is look to see if the coolant might be a bit low and check the oil for signs of coolant. Might as well rule out head/head gasket issue first before diving in anywhere else...
 
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