Hi
I have an issue where the car drives and runs fine from cold, but once the engine is up to temperature, pull up at a set of lights and the engine switches off (all normal so far). When setting back off the engine starts for about 3-5 seconds and then shuts off without delivering any power. The check engine light comes on and the display shows Check Hybrid System.
I pulled over and turned the car off, left it a minute and restarted it and the engine did the same again. I left the car for 90 mins and went back to it (only round the corner from my house luckily), and it fired up as normal and drove fine, power, response, etc, all normal until I drove it about 1.5 miles and the same again.
I left it a further 2 hours and it worked fine again but I didn’t drive it to “fail” again but it drove fine the 0.5 miles back home and charged the battery 2 bars back to 6.
I managed to ready the codes and the generic reader only read P3191. Reading this it looks like it’s reasonably obvious that it’s going to be a crank sensor, cam sensor, MAF or throttle body.
The throttle body was cleaned just under 12 months ago but the others are untouched.
Does anyone have any experience of which of the three are most likely place to start? I’m hoping MAF because I can imagine the others are buried under many other items 😞
Thanks in advance for any suggestions
Ash
Car: 2007 GS450h, 134k, new traction battery at 124k and full service history (Lexus up until 2017, then Local Indy 2018-> but using all genuine parts/oil/etc).