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SVTPerformance's Chain of Restaurants
Tuning À la carte
Data logging --> low Spark values.
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<blockquote data-quote="SVTContique" data-source="post: 11683031" data-attributes="member: 22544"><p>So ive been having issues with my car lately, namely it seems to be really down on power under load (like it pulls normally until i put a decent amount of load on and then it falls on its face) so i decided to data log and see if i could find any anomalies. </p><p></p><p>When i did a pull the car was pulling fine and then had a sort of "hicup" around the 3200rpm mark (this is where its been falling on its face) on the data log i can see spark values and everything seems normal, than in an instant the spark value just drops from 21 to 14.5, as soon as i lifted it went back up.</p><p></p><p>Is this my car pulling timing due to detonation?</p><p></p><p>Edit: Should also mention that short fuel trim dropped from 1.01 to 0.82 around this time (no idea why).</p><p></p><p>I also noticed that the AFR jumps up at that point as well from around 11.5 to 12.6ish.</p></blockquote><p></p>
[QUOTE="SVTContique, post: 11683031, member: 22544"] So ive been having issues with my car lately, namely it seems to be really down on power under load (like it pulls normally until i put a decent amount of load on and then it falls on its face) so i decided to data log and see if i could find any anomalies. When i did a pull the car was pulling fine and then had a sort of "hicup" around the 3200rpm mark (this is where its been falling on its face) on the data log i can see spark values and everything seems normal, than in an instant the spark value just drops from 21 to 14.5, as soon as i lifted it went back up. Is this my car pulling timing due to detonation? Edit: Should also mention that short fuel trim dropped from 1.01 to 0.82 around this time (no idea why). I also noticed that the AFR jumps up at that point as well from around 11.5 to 12.6ish. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Data logging --> low Spark values.
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