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The Terminator
Engine/Tuning
03 Cobra missing, backfiring, and sputtering below 3k Rpms. Need Avice
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<blockquote data-quote="FoxBody Curves" data-source="post: 16413240" data-attributes="member: 188154"><p>As stated in the title, my cobra is sputtering and backfiring below 3 to 3500 rpms then smooths out, it seems to me like its missing fairly bad. Its hard to tell during idle since it has stage 3 cams installed and i'm fairly new to this car so I cant say for sure. It's also worth mentioning that during WOT I haven't noticed the backfiring/hesitation and it takes off like a rocket. I pulled the plugs and cylinder 1 and 2 plugs were fairy foul but not terrible. I cleaned them all up and re-inserted them and it seemed to noticeably help for a while but not eliminate the problem. I do plan on doing a compression check, using a code reader, as well as checking the coil packs these next days off. Is there anything else I should be looking into? Any imput would be appreciated, Thanks.</p><p></p><p>EDIT: Also if it means anything to anyone. I am able to gently accelerate without any popping/backfiring or hesitation fairly well, but as soon as I give it to much throttle it starting showing those mentioned behaviors.</p></blockquote><p></p>
[QUOTE="FoxBody Curves, post: 16413240, member: 188154"] As stated in the title, my cobra is sputtering and backfiring below 3 to 3500 rpms then smooths out, it seems to me like its missing fairly bad. Its hard to tell during idle since it has stage 3 cams installed and i'm fairly new to this car so I cant say for sure. It's also worth mentioning that during WOT I haven't noticed the backfiring/hesitation and it takes off like a rocket. I pulled the plugs and cylinder 1 and 2 plugs were fairy foul but not terrible. I cleaned them all up and re-inserted them and it seemed to noticeably help for a while but not eliminate the problem. I do plan on doing a compression check, using a code reader, as well as checking the coil packs these next days off. Is there anything else I should be looking into? Any imput would be appreciated, Thanks. EDIT: Also if it means anything to anyone. I am able to gently accelerate without any popping/backfiring or hesitation fairly well, but as soon as I give it to much throttle it starting showing those mentioned behaviors. [/QUOTE]
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The Terminator
Engine/Tuning
03 Cobra missing, backfiring, and sputtering below 3k Rpms. Need Avice
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