# weird bog or hesitation

**URL:** <https://forums.speedlife.net/t/weird-bog-or-hesitation/99714>\
**Category:** SON240sx Automotive\
**Created:** [September 8, 2006, 10:06pm UTC](https://forums.speedlife.net/t/weird-bog-or-hesitation/99714 "2006-09-08T22:06:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![reds14](https://avatars.discourse-cdn.com/v4/letter/r/ec9cab/32.png) [@reds14](https://forums.speedlife.net/u/reds14)\
**Post date:** [September 8, 2006, 10:06pm UTC](https://forums.speedlife.net/t/weird-bog-or-hesitation/99714/1 "2006-09-08T22:06:15Z")

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i have and 95 s14 with a redtop sr 20… i have been experiencing this weird bog from time to time… just in the transfer from vac to boost. ive checked all my intercooler piping for leaks found none. ive tryed a different ecu. my car has a walbro 255 lph pump. kind of lost as to what i could be… if you shut it off while driving and start it back up the problem usually goes away so i started thinking electrical. This problem is not constant just happens when ever it feels like it… possible that one of the coil packs is breaking down? or mabye a bad ground? any help would be great … because its not that fun to drive when it wont make power. thanks guys.

```
                                                          jordan
```

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**Author:** ![Pants](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pants/32/5590_2.png) [@Pants](https://forums.speedlife.net/u/Pants)\
**Post date:** [September 12, 2006, 3:52pm UTC](https://forums.speedlife.net/t/weird-bog-or-hesitation/99714/2 "2006-09-12T15:52:14Z")

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try changing your spark plugs and clean your maf it might fix it . it fixed mine

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**Author:** ![Cal](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cal/32/5505_2.png) [@Cal](https://forums.speedlife.net/u/Cal)\
**Post date:** [September 12, 2006, 5:51pm UTC](https://forums.speedlife.net/t/weird-bog-or-hesitation/99714/3 "2006-09-12T17:51:35Z")

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How is your fuel pump sending unit?

If it is rusted and shit, the connections may be breaking up.

I had the same problem back in the day and simply chaning the ground on the sending unit fixed the problem.

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**Author:** ![reds14](https://avatars.discourse-cdn.com/v4/letter/r/ec9cab/32.png) [@reds14](https://forums.speedlife.net/u/reds14)\
**Post date:** [September 13, 2006, 6:01am UTC](https://forums.speedlife.net/t/weird-bog-or-hesitation/99714/4 "2006-09-13T06:01:23Z")

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thanks guys ive changed spark plugs and also cleaned the mafs . the fuel pump sending unit ground sounds like a better explanation… where is the ground located? like where doese it fasten to the chassis? thanks again.

```
                  Jordan
```

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**Author:** ![dip](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dip/32/5479_2.png) [@dip](https://forums.speedlife.net/u/dip)\
**Post date:** [September 13, 2006, 6:33am UTC](https://forums.speedlife.net/t/weird-bog-or-hesitation/99714/5 "2006-09-13T06:33:35Z")

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pressure test yoor whole air system  
youll be suprised what you find for leaks