2002 Isuzu Rodeo Check Engine Flashing

2002 ISUZU
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MARCH25
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2002 Isuzu Rodeo. The "check engine" light has come on. It flashes when the gas pedal is applied or when down-shifting. It stays on (without flashing) when the vehicle is at a complete stop, the brake is applied, or the clutch is in. Occasionally, there is a loss of power in first gear initially. Any ideas what the cause might be?

Thank you.
Jan 25, 2006 at 10:38 AM
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STRAILER
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It will need to be scanned to see what the code is which will probably be an o2 sensor that is shorted out but to make sure get the code and we will go from there.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Please let us know what happens so it will help others

Best, Ken
Jan 28, 2017 at 4:48 AM
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Suggested Repair

Scan the vehicle for diagnostic trouble codes before replacing parts. A shorted oxygen sensor is the likely cause, and the code should be confirmed; if it indicates an oxygen sensor fault, replace the sensor.

Conversation Summary

The owner of a 2002 Isuzu Rodeo reported a check engine light that flashes when accelerating or downshifting and stays on steadily when stopped, with occasional initial power loss in first gear. The expert advised scanning for the trouble code, noting it is probably a shorted oxygen sensor, and recommended confirming the code before proceeding.

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