I’ve gotten 255k out of my X300. I’m now a little tired of the time consuming effort of tracking down an intermittent stall problem at low speed pulling away. I described the problem here
I’m going to take the throttle body apart and clean it AGAIN and test the TPS, and also change the fuel filter and test the fuel pressure.
But my concern is the lack of availability of a reliable replacement if the sensor is bad. Unlike the 308 there does not appear to be a rebuild service.Similar issue with MAF sensor.
I hate to do it but my time is now more limited and I need to focus it on my XJS and my '94 XJ40 (which has been infinitely more reliable and also has 270k - no poor OBD2 lack of code generation perhaps, but needs a cylinder head gasket replaced).
Yesterday I cleaned TPS, MAF, AIT and tested a new CTS. Drove the car 30 miles. Flawless. Cruise, all gears, sport mode, stop/start on steep inclines …everything. Nothing. No transmission warning lamp.
This morning I warmed it up and it started to stall in the driveway.
My other concern is that I can find many posts describing this behavior but I cannot find a single post that results in a solution. Perhaps it’s a bad wire buried in a harness.
I’m not one for quitting but this is really becoming too time consuming. SNG offering 99 pct of the car is 1 percent short.
Is it time to part out valuable reliable parts and scrap the rest?