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Mustang Forums
2011-2014 Mustangs
2011-2014 Mustang Talk
Weird check engine (wrench) light..Looking for insight.
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<blockquote data-quote="SVTStampede" data-source="post: 15711957" data-attributes="member: 38400"><p>2012 5.0, has a Magnuson supercharger, stock throttle body, C&L meter with AED tune. Problem was present with the Magnuson tune and stock meter. Just listing that for completeness.</p><p></p><p>Over the last year I've had a weird check engine light that has shown up about 4-5 times. The weird thing is that it doesn't give me a code usually, even if I hook up the Xcal and check with the light on<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite12" alt="o_O" title="Er... what? o_O" loading="lazy" data-shortname="o_O" />. The one time it gave me a code it was P2135.</p><p></p><p>When it happens I think it is always at low RPM (1500-2000), and it feels like the throttle body is sticking. RPMs will hang as if cruise control is on.</p><p></p><p>If I shut the car off and restart it, everything goes back to normal and the light goes off.</p><p></p><p>Otherwise the car runs great, but hoping someone has some insight on this gremlin. It did this with the Magnuson supplied tune and with my current AED tune as I said. It did not do this before the supercharger, so it has to be something mechanical or electrical.</p><p></p><p>EDIT: To be clear, it is the "Wrench" light, not the "Engine" light.</p></blockquote><p></p>
[QUOTE="SVTStampede, post: 15711957, member: 38400"] 2012 5.0, has a Magnuson supercharger, stock throttle body, C&L meter with AED tune. Problem was present with the Magnuson tune and stock meter. Just listing that for completeness. Over the last year I've had a weird check engine light that has shown up about 4-5 times. The weird thing is that it doesn't give me a code usually, even if I hook up the Xcal and check with the light ono_O. The one time it gave me a code it was P2135. When it happens I think it is always at low RPM (1500-2000), and it feels like the throttle body is sticking. RPMs will hang as if cruise control is on. If I shut the car off and restart it, everything goes back to normal and the light goes off. Otherwise the car runs great, but hoping someone has some insight on this gremlin. It did this with the Magnuson supplied tune and with my current AED tune as I said. It did not do this before the supercharger, so it has to be something mechanical or electrical. EDIT: To be clear, it is the "Wrench" light, not the "Engine" light. [/QUOTE]
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2011-2014 Mustang Talk
Weird check engine (wrench) light..Looking for insight.
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