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JB+ Help
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03-02-2010, 03:24 PM | #1 |
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JB+ Help
I just installed my jb+ and after about 5min of riding my car started to shake and the service engine soon light came on, after about another 10min of driving the light went away, but the car is still shaking when i come to a stop and the pickup feels almost slower than stock. Is this just part of the the tune getting used to my car or what???
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03-02-2010, 03:27 PM | #3 |
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did you unplug the battery or wait until the car went into "sleep mode" before you installed the JB+? If you did then remove the JB+ and see if it still does it...
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03-02-2010, 03:29 PM | #4 |
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I never unplugged my battery during install or removal. I just let the car sit with the hood open and the doors locked for about 10-20 minutes.
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03-02-2010, 03:30 PM | #5 |
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I just got my hpfp replaced last week, but i guesss your right that could be it, sure does feel like it
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03-02-2010, 03:31 PM | #6 |
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OP, did you break any of the clips during the install? It sounds like there is a break in the connection between your JB+ and the TMAP sensor. And I'm leaning towards this cause this happened to me and one of the wires was not fully clipped into the JB+ and I was experiencing the same issues as you.
Or the second reason may be the extra boost pushed an already failing fuel pump over the edge. |
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03-02-2010, 03:31 PM | #7 | |
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Quote:
EDIT: No no clips where broken, but the side of the jb+ that has the logo on it is facing down, is this the right way?
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03-02-2010, 03:37 PM | #8 |
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are you on default setting? 75%? 100%? if you are not in default, did you do solenoid bypass? or maybe your injectors are going out?
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03-02-2010, 03:40 PM | #9 |
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I just put it in, so default
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03-02-2010, 03:42 PM | #10 |
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Drives: E90 335i, E70 X5
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take the JB out, and see if the car does the same thing, if so then you know there's problem with the car, not the tune. but by what you described, it sounds like some common fuel system malfunctioning. last time when i had mine situation very similar like yours, turned out ALL injectors were bad, and it DID trigger the tuner code in that case. so get a BT tool and scan to make sure you are in good shape.
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03-02-2010, 03:49 PM | #12 |
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Alright im going to check to see if anything was broken, and take it for a quick drive....but it was installed right, jb logo is face down?
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03-02-2010, 04:09 PM | #13 |
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I really don't know which way the logo should point, I had a beta version with no sticker. Maybe Mike could answer this question.
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03-02-2010, 04:14 PM | #14 |
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+1
It happened to me when I first got my JB+
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03-02-2010, 04:15 PM | #15 |
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03-02-2010, 04:24 PM | #16 | |
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btw just took out the jb+ and no pins broken or bent Just took it for a ride, check engine soon light comes on when i start the car, so im guessing hpfp failed again?
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03-02-2010, 04:49 PM | #17 |
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yeah it for sure sounds like your hpfp is on its way out. to check for the part number your SA should have given you a printout of what the dealership did and the part number for the hpfp should be on that paper. i just got mine replaced last weekend and i was in the same situation as yourself. oh and yes the jb + logo should be facing down because thats the only way for it be installed properly.
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03-02-2010, 04:54 PM | #18 | |
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O and would this have thrown any codes?
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03-02-2010, 05:06 PM | #20 |
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I dont have one
and the new hpfp they put in was the new 943 part number
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03-02-2010, 05:25 PM | #22 |
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wow so its the new hpfp, that interesting I wouldve thought that the hpfp problem was fixed with the new hpfp. it could also be your coil pack or injectors since you didnt mention anything about long cracks.
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