Hi all,
Just finishing swapping 940 turbo engine into a 1993 240. When you lift your foot off the gas at low speeds the engine just sputters and shakes for about 3 seconds and then dies. It starts right back up every time. Once the engine is warmed up it idles pretty good but when its cold it will sputter a bit and almost die while idling. AFR reads around 18 on cold start and then starts to drop and ends up at about 10 when warm. Right now the have a manual boost controller set to 0 boost or at least I think so based on how slow the car is. I don't have a boost gauge so I haven't started tuning that, could running no boost be the cause of this random stalling when I let off the gas?
Just finishing swapping 940 turbo engine into a 1993 240. When you lift your foot off the gas at low speeds the engine just sputters and shakes for about 3 seconds and then dies. It starts right back up every time. Once the engine is warmed up it idles pretty good but when its cold it will sputter a bit and almost die while idling. AFR reads around 18 on cold start and then starts to drop and ends up at about 10 when warm. Right now the have a manual boost controller set to 0 boost or at least I think so based on how slow the car is. I don't have a boost gauge so I haven't started tuning that, could running no boost be the cause of this random stalling when I let off the gas?