SVTContique
New Member
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.
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.
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