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New Edge Cobras
99 cobra hesitates after 4k rpms
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<blockquote data-quote="Justin Boisclaire" data-source="post: 15981899" data-attributes="member: 192348"><p>I also have developed a howling from the intake at very low/idle rpms. The new coils are in and still no change. I am getting lean codes from my +25% long term fuel trims. I guess i can change out the upper plenum gasket to rule out an intake leak. My long term fuel trim numbers go way down next to 0 when the engine has a load but short term numbers go up.</p></blockquote><p></p>
[QUOTE="Justin Boisclaire, post: 15981899, member: 192348"] I also have developed a howling from the intake at very low/idle rpms. The new coils are in and still no change. I am getting lean codes from my +25% long term fuel trims. I guess i can change out the upper plenum gasket to rule out an intake leak. My long term fuel trim numbers go way down next to 0 when the engine has a load but short term numbers go up. [/QUOTE]
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99 cobra hesitates after 4k rpms
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