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New Edge Cobras
surging at low rpm
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<blockquote data-quote="01bluesnake" data-source="post: 9740241" data-attributes="member: 84985"><p>if you can use the solus, datalog your tp, ect, iat, o2's, fuel trims, load, maf, baro, timing advance. do a constant throttle accel trying to move the throttle as little as possible to keep a steady log and see if anything looks out of wack as soon as it starts to surge when doing play back. i've seen some TPS issues cause surge on a steady accel as well as bad o2's. also monitor your fuel injector pulse with for possible sticking injector with any obvious difference in bank 1 and 2 fuel trims. Remember that your long trim is your overall correction and your short is your current correction of which your o2's will control.</p></blockquote><p></p>
[QUOTE="01bluesnake, post: 9740241, member: 84985"] if you can use the solus, datalog your tp, ect, iat, o2's, fuel trims, load, maf, baro, timing advance. do a constant throttle accel trying to move the throttle as little as possible to keep a steady log and see if anything looks out of wack as soon as it starts to surge when doing play back. i've seen some TPS issues cause surge on a steady accel as well as bad o2's. also monitor your fuel injector pulse with for possible sticking injector with any obvious difference in bank 1 and 2 fuel trims. Remember that your long trim is your overall correction and your short is your current correction of which your o2's will control. [/QUOTE]
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surging at low rpm
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