Would a bad tune cause the engine to run lean?
#1
Would a bad tune cause the engine to run lean?
I am tuned for a cc305 that ran a 250 shot of nitrous. However, I am currently running a gm847 NA. Also, the compression with the 305 was 10.8. Now it is 11.3. I am getting lean codes on both banks off and on. I assume I have pinpointed the problem. If not, just let me know. I recently ordered a tune from madz28, so everything should be fine after I get it.
#2
Re: Would a bad tune cause the engine to run lean?
Yes a tune can cause you to run lean or rich just depends. Get some datalogs and you will have a better idea of where you are at and if the problem is in one area or if it is only at certain loads and RPM conditions
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F'n1996Z28SS
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08-23-2023 11:19 PM