matteostorm1

Lexus IS Reduced Engine Power

Hey, got a weird one. My 2018 Lexus IS with a gasoline engine is throwing codes and has reduced engine power. 215761 km on the clock. Error stored in the error memory. Think it's the chip tuning the previous owner did. Any ideas?

A 2018 Lexus IS experienced reduced engine power and error codes, suspected to be caused by previous chip tuning. The issue was confirmed by a workshop, which resolved it by reflashing the ECU to its stock settings. This solution restored the car's performance.

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4 comment(s)

I had something similar happen on my IS. Check engine light came on, felt sluggish. Could very well be dodgy tuning. Have you scanned for the diagnostic code yet?

Yeah, car diagnostic shows a fault code. You think that faulty chip tuning could really cause this? What did you do to fix it?

Pretty sure it was the tune causing issues on mine. I'd take it to a reputable workshop. They can check the tune and probably reflash it back to stock if needed. Best to get it sorted before it causes real damage.

Thanks, man. Took it to the shop, they confirmed the chip tuning was the culprit. Reflashed the ECU; cost me 180€. Runs like a dream now!

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LEXUS

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