I'm having a problem with my Tahoe Hydrid Stalling out. It happens when the engine switches from Electric mode to Gas pode particularly at a stop. The codes that show up ar POAC4 and P061B. I've taken the vehicle to the dealership numerous times and they were not able to fix it. First time they said the throttle body was dirty and it needed to be cleaned. That didn't fix it. Next time it happened they said the batteries were no good, but they couldn't work on the Hybrid since the gloves that they use to work on Hybrid batteries had Expired. Then the next time it happened they said it was the Catalytic Converter...that was change and it still did not fix the problem. I took it in the last time just recently and they reflashed the ECM and said they still don't know what is causing the problem...they supsect it is the aftermarket wheels and tires that is causing the vehicle to stall? The advisor said that Hybrids are very sensitive when it comes the the computer and torque calculation. Does anyone have any idea of what it causing this problem???
Thanks in advance.
Thanks in advance.