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Cobra Forums
The Terminator
Engine/Tuning
AFRs are erratic and drifting rich
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<blockquote data-quote="03cobra#2" data-source="post: 16519174" data-attributes="member: 52057"><p>Can you log the wideband into livelink through your xcal4? So that the AF shows up in livelink....that is key in seeing what the af does in relation to the short term fuel trims. </p><p></p><p>If you can get a log of engine rpm, af, stft's, spark, spark source, fuel source, maf counts, idle integrator, isc duty cycle, coolant temp, load, and injector duty cycle, and the frps so we can see delta fuel pressure. </p><p></p><p>Log a cold start steady idle for like 2 min, the get the car up to operating temp and log a steady idle for 2 min.</p><p></p><p>Post up the logs and see what we got.</p></blockquote><p></p>
[QUOTE="03cobra#2, post: 16519174, member: 52057"] Can you log the wideband into livelink through your xcal4? So that the AF shows up in livelink....that is key in seeing what the af does in relation to the short term fuel trims. If you can get a log of engine rpm, af, stft's, spark, spark source, fuel source, maf counts, idle integrator, isc duty cycle, coolant temp, load, and injector duty cycle, and the frps so we can see delta fuel pressure. Log a cold start steady idle for like 2 min, the get the car up to operating temp and log a steady idle for 2 min. Post up the logs and see what we got. [/QUOTE]
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AFRs are erratic and drifting rich
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