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Re: Cylinder 3 misfire on a 2002 Nissan Maxima SE, rough...
Most likely an ignition coil failure.try moving the #3 cyl. ignition coilto another cyl.and see if the miss follows the coil to the other cyl.if so...bad coil.
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The following directions will help you decode your 2002-2006 Nissan Altima's Service Engine Soon (SES) light and reset it.<br />
<br />
<span style="font-weight: bold;">Obtain The Trouble Code</span><br />
<ol>
<li>Turn the ignition key to the ON position and wait three seconds.</li>
<li>Put the accelerator pedal to the floor and release it five times in less than five seconds.</li>
<li>Wait exactly seven seconds. Put the accelerator pedal to the floor for ten seconds until the SES light flashes.</li>
<li>Release the accelerator pedal and start counting flashes to obtain the four-digit trouble code.<br /></li></ol>
<ul>
<li>Long flashes (0.6 seconds) indicate the first digit of the code; count
the blinks one through nine and write down the first digit. (Ten blinks
indicates a zero.) </li>
<li>
The next three digits blink
faster (0.3 second) and have a 1 second pause between digits.</li>
<li>The ECM code repeats until you turn the ignition key to the OFF
position.</li>
<li>You can look up the trouble codes in the Service Manual.</li>
<li>If you get four blinks of ten, or 0000, the ECM indicates no malfunction.<br /></li></ul>
<br style="font-weight: bold;" /><span style="font-weight: bold;">Clear The Trouble Code</span><br />
<ol>
<li>
Clear the code and the SES light by holding the
accelerator pedal down to the floor for 10 seconds or more while the SES light is
blinking.</li>
<li>When the pedal is released, the ECM will erase the trouble
code(s).</li></ol>
If is is only smoking when you first start it up. Most likely the valve guide seals, oil is leaking into the cylinders and smoking when you start it up.
A flashing SES light means that you are operating the vehicle under conditions that are DESTROYING your catalytic converters! This is not good.
Diagnostic Test Code (DTC) P0305 is defined by SAE J2012 as "Cylinder 5 Misfire Detected".
DTC P1145 is a "manufacturer-specific code" and is defined by Nissan as "Bank 2 Intake Valve Timing Control Position Sensor - High Or Low Voltage"
So, to put it simply, you need to find out WHY cylinder #5 is misfiring and get it fixed. You also need to diagnose the intake valve timing control position sensor circuits on bank 2 to (1) find out if the voltage is HIGHER or LOWER than specification (since the code itself is not specific about which it is). And (2) find out what is CAUSING the voltage to be out of specification and take the appropriate action correct it.
Im having the same issue w/ my 99 maxima. had the problem 2 months ago, they replaced coil, changed plugs, told me that I would still get knock sensor code but dont worry about it. Now the rough idling and check light flashing is happening again.
if there is a misfire in the #3 cylinder i would suggest checking the spark plug to see if it is dirty or oiley etc other than that the ht leads hope this helps regards Jim
HI, this could be three things here causing this misfire. One, it could be a bad plug that. Two, the wire could not be getting the right current flow from the distributor/coil. Three, you could possibly have a bad valve spring that is not preforming up to specs, causing the cylinder to combust in a unstable state. i woudl check the above areas.
Disconnect the battery completely, try turning the key with the battery disconnected. Put the battery back together. The check engine light should be off now..
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