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Tuning & Engine Management Engine Management, EGT temps, timing, wideband, datalogging, fuel trims, etc.

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Old 05-27-2007, 01:25 AM   #1 (permalink)
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How do I remove fuel cut?

So, I'm done with my idle settings and part throttle crusing in ecuflash, tthis stuff is great by the way, but I've now ran into fuel cut. I rescaled the loads to go up to 300%, left the fuel table rich up top, and the timing way conservative up top too. I was driving home from work wanted to feel 21psi again so I floored it. I got to about 4K RPM's and bam! The car balks, my head snaps forward, and then car goes on just fine.
I was under the impression that this is why we rescale the loads... so the ECU can go farther up the map and that's good enough. I guess not. I'm still with my trusty MBC, so the solinoid is out of the loop, but do I still have to raise the "boost limit" in the flash? What to I have to change now? Something with the "boost cut delay timer"? It just doesn't seem like that would be it with a MBC. Do I have to start messing with the "MAF scaling" or "MAF size?"



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Old 05-27-2007, 08:15 AM   #2 (permalink)
 
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don't think any of your ideas are going to help. let me see if I can find the culprit.
if the solenoid is disconnected you don't have that dog in the hunt.

can you post a log with this condition?
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Old 05-27-2007, 08:53 AM   #3 (permalink)
 
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Set "Boost Limit" to 319 globally.
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Old 05-27-2007, 11:02 AM   #4 (permalink)
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Good looking out JustDSM it worked like a charm. You are the man.

nothere, I can't post a log of it because the logger was set to just monitor fuel trims. It was a spur of the moment thing, the road was open, and I was being a dork.




Last edited by turbolarry; 05-27-2007 at 09:49 PM.
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Old 05-28-2007, 03:13 PM   #5 (permalink)
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What does 319 do when you set it on ecu flash i have a evo9 and i read the limits all the time and my buddy evo9 rs has 319 on it my is not flashed yet.
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Old 05-28-2007, 04:25 PM   #6 (permalink)
 
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It keeps you from hitting fuel cut. Don't mess with it.





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