Toyota RAV4 engine starts but shuts off after 20-30 seconds, unable to idle on Toyota RAV4

Some Toyota RAV4 owners report experiencing engine shutdowns shortly after starting, with the engine unable to idle properly. These issues may stem from low idle RPM, where the engine struggles to maintain speed and eventually stalls, although revving it may temporarily help. Additionally, some owners suspect air intake problems, as the engine may stop while idling but restart after a brief period. Fuel-related issues, such as old gasoline or a clogged fuel filter, can also contribute to stalling. Furthermore, incorrectly installed batteries or faulty ECUs have been reported to cause similar problems, with one instance leading to costly repairs. Issues with the gas cap have also been noted, where improper sealing can result in the engine dying. Diagnostic challenges may arise as mechanics sometimes find it difficult to replicate the stalling issue during inspections. Overall, it is advisable for RAV4 owners experiencing these symptoms to seek a thorough inspection by a qualified mechanic to identify and resolve the underlying problems.