P1603 Diagnostic Trouble Code Discussion for December 2023
PCM Internal Shutdown Timer Rationality
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| Help Request | Posted | |
| 2016 Toyota Tundra SR5 5.7L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 5TFDW5F12G P1603: Engine stall history. Not familiar with these systems .suspecting fuel pump . first had a sounded like timing chain noise had no oil. change oil noise is gone. this morning long crank time and ide rough than cleared up idle than stall like 4-5 times finally idled ok . hit accel... |
December 04, 2023 |
