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Under/over boost on target.....JB4
I have been having some issues with my car the last few months where I am not getting full boost and have checked the vacuum lines...nothing wrong there. I have yet to check the boost pressure, which is not the easiest thing. But I don't think that is the issue, wouldn't I keep losing boost the longer I have the issue? So far everything is staying steady. But doing some research I couldn't find out on the jb4 what the under/over boost on target function did or how to read it. Assuming if it is always in the middle I am good, under WOT I only get to about 1/4 range
I have checked codes and I have the fuel pump plausibility code and just last week I had a cylinder 5 misfire code. Thinking my fuel pump might be going out again, would this keep me from getting full boost?
2007 e90 335i
93 octane always
BMS DCI
JB4 G5 iso Map 5
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335i E90 | BMS DCI | Black Matte Grill | JB4 | Logic 7 | Sport | Premium | Cold |
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