Check Engine Light and Reduced Engine Power

GarrettG

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Apr 27, 2025
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San Diego, CA
Hi all,

I spent a full day at my local dealership trying to purchase a brand new Trailhunter today, with an extremely disheartening outcome… While at the dealership, I test drove a very low mile (11k mile) preowned Land Cruiser with the iForce MAX as the 4R Trailhunter was still going through the PDI process. As soon as I pulled out of the dealership the Land Cruiser felt extremely sluggish to me, so I switched to sport mode and applied 40-50% throttle. The truck felt like it was starting to pick up power only to throw a check engine light with multiple messages about various “failures”….

All in all, I chalked it up to being a unique issue with this specific vehicle (I figured that’s probably why it was traded in)

Fast forward to finally getting behind the wheel of the 4R Trailhunter and I ran into the EXACT SAME issue. I drove the car back to the dealership and the salesman immediately had the service department take a look at it. The service tech told me there were a lot of codes (running lean, ABS brake malfunction, etc.) ; However, he and the salesman both reassured me it was a fluke thing. The service tech reset the codes and had me take it out on a second test drive. Half way through the second test drive a message popped up saying “reduced engine power see dealer” and there was in fact a big drop in power/performance. No CEL this time around, but I was still very worried and disheartened because I REALLY wanted a new 4Runner and ended up having two terrible back to back experiences with the new powertrain. I passed on the deal this time around, but now im bummed because I don’t know when the next Trailhunter/TRD Pro will pop up that isn’t already spoken for…

Has anybody with the iForce Max ran into this issue or something similar?
 

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