Quote:
Originally Posted by Deadeye
Not sure how the shop tuned the ecu after the transplant. I purchased the car this way.
I used the larger maf tube from the 987 intake and that is probably the cause. Car is going to a shop for a dyno tune today.
Why does it run very well with the maf disconnected? Does the ecu default to a baseline? Is the primary purpose of the maf to optimize fuel mix for mileage and emissions?
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Yes . Without the maf it defaults to open loop/limp home mode. Some have said the open loop programming is pretty good ,but I suspect it will run overly rich .