Hi guys , Sometimes my 348 is shutting down at idle. It only happens when the car is hot. Its working fine for months and then the problem comes back. It seems its getting worse. No problem starting the engine. If I keep my foot for a little throttle its running fine. .anyone ??? Thanks again for any tips, Luuk
I was having that problem with my 348. After replacing the O2 sensors it was fine. Not sure that is your problem but an area to look at. You may get a hint by checking your error codes.
+1 http://www.club348.com/technical/Tech/348.html#EngineStallsOverheats Also, I'd suggest resetting the engine ECU's by disconnecting power for 15 seconds and then letting the car idle (preferably with a cold engine, but that's not mandatory) until the cooling fans kick on. Likewise, you might as well check the basics such as having a clean airfilter...
Got it working like it should be. It looks like it was a problem with the sparkplugs they had become lose. I think I was a bit to scared to brake them when I changed them the last time. I put new plugs on and it runs perfect for a few days now. The problem was random but I got a good feeling about this. I’ll be leaving 6 september to Monza (Italy) to see the formule1 racing there so I got 3100 Km to try it. .... Luuk
I had the same erratic idle and stall issue. I had just completed a major major where i had the entire upper engine apart and literally took painstaking effort to put together the cleanest 348 you'll ever see. Every component was either new or diagnosed as perfect. No vacuum leaks as well. I had noticed once that by simply touching the secondary air intake tube assembly that the engine idle would change suddenly. But hell, that of course could not make sense since that system has nothing to do with idle vacuums in any way, its simply not in the loop. But today, after the problem became so bad that the car would stall at every corner I had to stare at it for a while and think. While staring at that stupid secondary tube I noticed a interesting thing .... the MAV cable is literally resting on the secondary tube. In other words when I was moving about the secondary tube I was also jiggling the MAV cable. So ... even though the MAV connector pins looked clean, I used some contact cleaner on them and re-connected diligently. The world change.
