Battery Tester Load
timing drops from 20 to 0 under load mechanic has had it on the diagnostic tester and has gone through sensor?
tested sensors replaced timing sensor regrounded battery ran good for 3 days then under load timing dropped out replacing PCM any other ideas
What type of vehicle? There are many electrical problems that can cause such an issue, including the PCM. While many sensors may not trigger a CEL, a proper OBD scanner can read the outputs of each sensor and determine whether their parameters meet the original specifications.
Poor Man’s Battery Load Test
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