random rev limit, boost cut

s300 and SManager software questions & answers
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BadWay
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Joined: Thu May 31, 2007 1:39 am
Location: oregon

random rev limit, boost cut

Post by BadWay » Fri May 02, 2014 7:30 pm

Car was tuned on the dyno. No issues while on the dyno. Take the car to the track and it rev limits at around 3800 randomly. Also at one point it was hitting boost cut under the programmed limit. Here is the datalogs and the map. Any ideas? I'm pulling my hair out..
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pass2.s3d
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pass1.s3d
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91 hatch.skl
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crucian
Posts: 198
Joined: Sat Dec 10, 2005 9:42 am
Location: Lowville, NY

Re: random rev limit, boost cut

Post by crucian » Sat May 03, 2014 5:52 am

I'm looking at your stuff and I cant figure it out either. Will try to look some more. Make sure that nothing is loose in the ECU.

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Spunkster
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Re: random rev limit, boost cut

Post by Spunkster » Mon May 05, 2014 2:18 pm

Try disabling on-board datalogging and see if that has any effect.

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Hondata
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Re: random rev limit, boost cut

Post by Hondata » Mon May 05, 2014 3:28 pm

When it cuts the MAP is spiky - it may be briefly going past the boost cut faster than the datalogging rate.
Hondata

BadWay
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Location: oregon

Re: random rev limit, boost cut

Post by BadWay » Mon May 26, 2014 11:23 pm

thanks for the replies. swapped out the distributor and everything is normal now. the distributor had some small damage on the crank angle sensor wheel

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Hondata
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Re: random rev limit, boost cut

Post by Hondata » Tue May 27, 2014 7:45 am

Thanks for the update - it does help other who experience the same problem.
Hondata

crucian
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Location: Lowville, NY

Re: random rev limit, boost cut

Post by crucian » Wed May 28, 2014 5:43 am

BadWay wrote:thanks for the replies. swapped out the distributor and everything is normal now. the distributor had some small damage on the crank angle sensor wheel
Good to hear. Glad that u found the problem and shared. I tried that already on my car but I bought a cheap eBay distributor. Had to send it back now I'm waiting on a new OEM version.

9queSt
Posts: 71
Joined: Thu Jan 03, 2013 9:10 pm

Re: random rev limit, boost cut

Post by 9queSt » Mon Jun 23, 2014 8:26 pm

BadWay wrote:thanks for the replies. swapped out the distributor and everything is normal now. the distributor had some small damage on the crank angle sensor wheel
are you sure it fixed it?

I had the same issue with 2.3.3

I then used 2.3.2 for file 1730r and the same issue.
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