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In gear idle issues.....   Message List  
Reply | Forward Message #145 of 181 |
Re: In gear idle issues.....

OK, I am with you now! You have a units conflict. I have seen this
lots, just need to remember how I fixed it.
Sun Mar 2, 2008 7:59 pm

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kilr_bee
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Forward 		Message #145 of 181 |
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I have an LB7 im tuning and while at an idle in gear I have a lope. I didnt change any fuel pressure at idle or any pulse width. (So I thought) I did some... 		lpdtuning
Offline Send Email 		Mar 2, 2008
1:18 am

190 mPa at idle means something is fundamentally wrong in the tun file. How about uploading both tunes into the TUNE REPOSITORY ...
Michael
kilr_bee
Offline Send Email 		Mar 2, 2008
1:32 am

... file. ... 20reposito\ ... I uploaded it Micheal....I just dont understand why it would be commanding that much pressure. I checked all my tables and none...
lpdtuning
Offline Send Email 		Mar 2, 2008
2:02 am

I think I figured it out, but still dont understand why it is commanding that pressure. When in gear it commands more fuel, around th 8-9mm3 area. My pulse...
lpdtuning
Offline Send Email 		Mar 2, 2008
2:17 am

... I think you are exactly correct. If you "flatten" the idle area somewhat, you may see the surge disappear. Also, if you want to post the stock tune, so...
Michael
kilr_bee
Offline Send Email 		Mar 2, 2008
1:46 pm

I am still confused about your "190 mPa". That is not explained by the above post. I need to see that for myself in your log....
Michael
kilr_bee
Offline Send Email 		Mar 2, 2008
1:49 pm

... the ... Funny thing is, on two different trucks in stock tune, it is the same way. I would think that during idle the truck would be calling for the upper...
lpdtuning
Offline Send Email 		Mar 2, 2008
7:32 pm

OK, I am with you now! You have a units conflict. I have seen this lots, just need to remember how I fixed it....
Michael
kilr_bee
Offline Send Email 		Mar 2, 2008
7:59 pm

In your PID's list (F8), FRPDES and FRPACT probably needs to be changed to metric, or vice versa. Right click on it for this option. Did this fix it?...
Michael
kilr_bee
Offline Send Email 		Mar 2, 2008
8:09 pm

... changed ... That did it!!!!! Now, is that still where I need to change my numbers then? In that area? Cause that sounds a lot more realistic cause I have...
lpdtuning
Offline Send Email 		Mar 3, 2008
12:42 am

Oh yeah, and it was selected as Imp. and I changed it to Metric....
lpdtuning
Offline Send Email 		Mar 3, 2008
12:44 am

Yes. The idle section is typically around 600-900 rpm, and 20-40 mPa. In that section of the table, if you just copy and paste the stock values back, you...
Michael
kilr_bee
Offline Send Email 		Mar 3, 2008
1:27 am
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