sanchezu Posted September 27, 2022 Report Share Posted September 27, 2022 I have a turbo m52 and I'm currently having an issue where the ecu will not allow the car to exceed zero MGP. Everything works as it should under vacuum but once it reaches atmospheric pressure it completely cuts out and the engine stalls. If anyone has any insight, I would greatly appreciate it. Below I've included a couple data logs of the situation as well as the map being used. PC Datalog - 2022-09-26 6;48;22 pm.llgx PC Datalog - 2022-09-26 6;46;41 pm.llgx BMW E30 Base V1.pclx Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 27, 2022 Report Share Posted September 27, 2022 Something wrong with the fuel tune I would say. In your 6;46PM log you are idling at 32kpa MAP with an inj PW of 2.2ms, lambda is richer than target. When you open the throttle the MAP increases to 100Kpa, this is 3x higher pressure than idle so you would expect approx 3x more fuel than idle. However your PW increases to 21ms - this is 10x more fuel? Are you sure it has fuel pressure? What does it have for injectors? Where did the fuel table come from? Quote Link to comment Share on other sites More sharing options...
sanchezu Posted September 28, 2022 Author Report Share Posted September 28, 2022 I'm running 630cc siemens deka injectors. The fuel map was just quickly put together and is not complete yet. I have not verified fuel pressure but I will do so and go from there. Quote Link to comment Share on other sites More sharing options...
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