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	<title>P219F/008607 - Revision history</title>
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	<updated>2026-04-05T18:23:12Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.ross-tech.com/wiki/index.php?title=P219F/008607&amp;diff=9666&amp;oldid=prev</id>
		<title>Peter: Created page with &quot;__FORCETOC__ == P219F/008607-Fuel/Air Mixture Cylinder 4: Unbalanced ==  ==== Possible Symptoms ==== * Engine runs rough * Hesitation or lack of power * Increased fuel consump...&quot;</title>
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		<updated>2025-03-14T15:42:42Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;__FORCETOC__ == P219F/008607-Fuel/Air Mixture Cylinder 4: Unbalanced ==  ==== Possible Symptoms ==== * Engine runs rough * Hesitation or lack of power * Increased fuel consump...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;__FORCETOC__&lt;br /&gt;
== P219F/008607-Fuel/Air Mixture Cylinder 4: Unbalanced ==&lt;br /&gt;
&lt;br /&gt;
==== Possible Symptoms ====&lt;br /&gt;
* Engine runs rough&lt;br /&gt;
* Hesitation or lack of power&lt;br /&gt;
* Increased fuel consumption&lt;br /&gt;
* Illuminated MIL (Malfunction Indicator Light)&lt;br /&gt;
&lt;br /&gt;
==== Possible Causes ====&lt;br /&gt;
* Spark plugs fouled or worn&lt;br /&gt;
* Intake system leaks (false air)&lt;br /&gt;
* Fuel pressure or fuel delivery issues&lt;br /&gt;
* Faulty fuel injector(s)&lt;br /&gt;
* Faulty ignition coil(s)&lt;br /&gt;
&lt;br /&gt;
==== Possible Solutions ====&lt;br /&gt;
* Visually inspect and replace spark plugs if necessary&lt;br /&gt;
* Inspect intake system for leaks and repair as needed&lt;br /&gt;
* Check and verify correct fuel pressure and delivery quantity&lt;br /&gt;
* Inspect and clean or replace fuel injectors&lt;br /&gt;
* Check ignition coils, swap coils location to see if the fault code changes&lt;br /&gt;
&lt;br /&gt;
==== Special Notes ====&lt;br /&gt;
* As per the Factory Repair manuals:&lt;br /&gt;
** This fault code sets when a specific cylinder runs too lean, causing an imbalance in the air-fuel mixture and engine roughness.&amp;quot;&lt;br /&gt;
* Fault may be more prevalent in conditions such as:&lt;br /&gt;
** Engine speed between 1,240 – 2,240 RPM&lt;br /&gt;
** Engine load between 39.80 – 99.80%&lt;br /&gt;
** Cylinder head ECT &amp;gt; 60°C&lt;br /&gt;
** Modeled catalyst temperature between 450 – 850°C&lt;br /&gt;
** Lambda control in closed-loop operation&lt;br /&gt;
** No rough road detected&lt;br /&gt;
** Integrated air mass within 1.70 – 3.50 kg range&lt;br /&gt;
&lt;br /&gt;
[[Category:Fault Codes]]&lt;/div&gt;</summary>
		<author><name>Peter</name></author>
	</entry>
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