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More problems with Mystic Cobra
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<blockquote data-quote="scothew_gt" data-source="post: 301850" data-attributes="member: 7888"><p>Alot of you remember me haveing alot of problems with my '96 Mystic. You can see my origional post <strong><a href="http://forums.stangnet.com/showthread.php?s=&threadid=273686" target="_blank">HERE</a>.</strong> short recap, I was having an intermitent missing problem at low RPM, usually under 2k RPM under a load. It would also miss severly over 5500 RPM. Well today i changed spark plugs again and the low rpm miss seems to be gone. I previously had NGK tr-55's and I put in some autolite platmiums (only plug I could find available this morning)</p><p></p><p>I have replaced the wires, plugs, and coil packs. Also removed my C&L 80mm MAF. I run nothing but 93 octane. Today I ran it on the Dyno just to see what it would do and to see if i have any more problems. It seems that after 4k rpm, the car seriously starts missing and after 5900, the computer totaly leans it out and cuts timing. I only made 1 run so i will post the actual graph from it and also one i smoothed out a lil bit to make easier to read. If anyone needs the a/f I can do one of that as well. </p><p></p><p>I am guessing maybe I have an injector or my fuel pump going out. Anyone else got any ideas??? </p><p></p><p>Thanks! </p><p>Scott</p><p></p><p>edit: here's the video of the run. <a href="http://www.vibezaudio.com/scothew/video/mystic_dyno1.wmv" target="_blank">Right click and save as</a></p><p></p><p>Power and TRQ curves</p><p><a href="http://www.vibezaudio.com/scothew/cars/mustang/mystic/dyno1.jpg" target="_blank">http://www.vibezaudio.com/scothew/cars/mustang/mystic/dyno1.jpg</a></p><p></p><p>Power and A/F</p><p><a href="http://www.vibezaudio.com/scothew/cars/mustang/mystic/dyno3.jpg" target="_blank">http://www.vibezaudio.com/scothew/cars/mustang/mystic/dyno3.jpg</a></p></blockquote><p></p>
[QUOTE="scothew_gt, post: 301850, member: 7888"] Alot of you remember me haveing alot of problems with my '96 Mystic. You can see my origional post [B][URL=http://forums.stangnet.com/showthread.php?s=&threadid=273686]HERE[/URL].[/B] short recap, I was having an intermitent missing problem at low RPM, usually under 2k RPM under a load. It would also miss severly over 5500 RPM. Well today i changed spark plugs again and the low rpm miss seems to be gone. I previously had NGK tr-55's and I put in some autolite platmiums (only plug I could find available this morning) I have replaced the wires, plugs, and coil packs. Also removed my C&L 80mm MAF. I run nothing but 93 octane. Today I ran it on the Dyno just to see what it would do and to see if i have any more problems. It seems that after 4k rpm, the car seriously starts missing and after 5900, the computer totaly leans it out and cuts timing. I only made 1 run so i will post the actual graph from it and also one i smoothed out a lil bit to make easier to read. If anyone needs the a/f I can do one of that as well. I am guessing maybe I have an injector or my fuel pump going out. Anyone else got any ideas??? Thanks! Scott edit: here's the video of the run. [url=http://www.vibezaudio.com/scothew/video/mystic_dyno1.wmv]Right click and save as[/url] Power and TRQ curves [url]http://www.vibezaudio.com/scothew/cars/mustang/mystic/dyno1.jpg[/url] Power and A/F [url]http://www.vibezaudio.com/scothew/cars/mustang/mystic/dyno3.jpg[/url] [/QUOTE]
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