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George @ BMS George @ BMS is offline
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Posts: 821
Join Date: Aug 2009
Car: E90 BMW 335i AT
Default 06-18-2019, 04:14 AM

Quote:
Originally Posted by TSI 1.8T Jasper
ok so just did what you asked , car was up to temp after drive from work ..with stock MAP sensor cable plugged in car has no hiccups at all once JB4 MAP cable gets plugged back in hiccups are back. I can say that they are lot less obvious with the firmware update but unfortunately do exist , as long as no harm im not to concern since they are very small but if you have a fix that would be fantastic.

Thanks
As a test remove that plug again and use some ear buds (cotton buds) and see if you can clean the pins on the sensor. Sometimes there is some sealant they use on the plugs and it can cause similar. If the car has high mileage also worth pulling the sensor and giving it a clean with some petrol if its covered in oil.


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