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Author Topic: car falling on its face under boost  (Read 1138 times)

Offline Joliesa Lepp

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car falling on its face under boost
« on: August 24, 2011, 03:41:11 pm »
Currently sitting in departure bay. But on the way anytime i am under load or boost it the car will stumble and buck. Help!
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Offline Joliesa Lepp

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Re: car falling on its face under boost
« Reply #1 on: August 24, 2011, 03:49:35 pm »
Should also mention i have no tools and need help asap as Im supposed to be travelling home today.
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Offline Jordan Kruger

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Re: car falling on its face under boost
« Reply #2 on: August 24, 2011, 03:51:02 pm »
Is it knocking? could be a bad knock sensor...  or a map sensor issue... or wideband issue..

    did the problem start out of nowhere?  or has it stumbled since the first time you took the car over 5000rpm while under load?
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337awhp.  ---> 500 awhp ? =)

Replacing parts since early 2010.

Offline Joliesa Lepp

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Re: car falling on its face under boost
« Reply #3 on: August 24, 2011, 03:53:44 pm »
If i boost at all at 3000 it falls flat, and outta no where. I checked all connectors, wideband shows it goes super rich and Im getting 10-20 counts of knock.
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Offline Jordan Kruger

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Re: car falling on its face under boost
« Reply #4 on: August 24, 2011, 04:05:54 pm »
I think it may be just a knock sensor issue..    I had a major stumble going into boost and it was the knock sensor.  obviously this is an E-guess.  :p

the knock sensor will retard the shit out of your timing and youll studder bad.      maybe just reach behind the block and touch the knock sensor   make sure its tight enough... but not too tight.    8ftlbs ?   did you recently put it in the block?  
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337awhp.  ---> 500 awhp ? =)

Replacing parts since early 2010.

Offline Joliesa Lepp

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Re: car falling on its face under boost
« Reply #5 on: August 24, 2011, 04:09:32 pm »
Brand new. Its been in there for about 2500 kms. And it seems.tight
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Offline Jordan Kruger

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Re: car falling on its face under boost
« Reply #6 on: August 24, 2011, 04:17:54 pm »
herrrmmm      do you have any way of getting another members knock sensor for 5 mins??      Im just trying to get rid of the stupid simple possibilities before drastic measures are taken...  :)

It could also be weak ignition coils.  thye could provide enough spark for driving   but not boost.   resulting in super richhh..  
« Last Edit: August 24, 2011, 04:20:31 pm by Jordan Kruger »
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337awhp.  ---> 500 awhp ? =)

Replacing parts since early 2010.

Offline Joliesa Lepp

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Re: car falling on its face under boost
« Reply #7 on: August 24, 2011, 04:25:04 pm »
Depends. Anyone willing to meet me anywhere near highway 1? Im taking the 5:20 ferry to horseshoe bay.
« Last Edit: August 24, 2011, 04:26:44 pm by Joliesa Lepp »
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Offline Joliesa Lepp

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Re: car falling on its face under boost
« Reply #8 on: August 24, 2011, 04:35:57 pm »
Ryan you're a lifesaver
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Offline Kristopher

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Re: car falling on its face under boost
« Reply #9 on: August 24, 2011, 06:27:32 pm »
Check to make sure your plug wire didn't pop off the plug.
then
Unplug the knock sensor to default it to 9 counts if you don't trust it.
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Kristopher

Bryan Hoytema

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Re: car falling on its face under boost
« Reply #10 on: August 24, 2011, 06:55:45 pm »
what was the verdict ? this thread will also help me out ! knock sensor was replaced !
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Offline Ryan Coft

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Re: car falling on its face under boost
« Reply #11 on: August 24, 2011, 07:00:04 pm »
No guarantees I can fix anything lol, but I'm meeting her shortly on this side of the ferry. I'll see what's up.
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Offline Jordan Kruger

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Re: car falling on its face under boost
« Reply #12 on: August 24, 2011, 07:22:21 pm »
Thats a solid favour bud.     good on ya.

Sorry I was unable to help any further joliesa!
I had to run!


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337awhp.  ---> 500 awhp ? =)

Replacing parts since early 2010.

Offline Joliesa Lepp

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Re: car falling on its face under boost
« Reply #13 on: August 25, 2011, 06:59:36 am »
Car is proving to be quite the difficult child. Hasn't stumbled in boost since yesterday,  and that's at hitting 18 psi. Will know better once I get home, but a huge thanks to Calvin for making me feel like I should have a colt, and John for all his insight.  Pretty sure Ryan is one of the most standup members here... Thanks! Oh and Sheela, stop worrying!  :D Wish us luck on the drive home!!!
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Offline Jason Harwood

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Re: car falling on its face under boost
« Reply #14 on: August 25, 2011, 08:29:24 am »
Had I saw this yesterday I could have come out.

Boost Leak?
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