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Sputter@5800rpm and wall at 7k rpm

Posted: Tue Apr 21, 2009 6:15 pm
by Anointeddc5
Here are a few datalogs I recorded showing the problem as well as a cruising datalog to show how rich it is running.

Currently running:
Stock K20a2
Greddy Turbo
750cc injectors
ips kt1 cams
walbro fuel pump
greddy evo tt
unforgettable test pipe
stock fuel system no return
ngk bk8reix plugs

Posted: Tue Apr 21, 2009 9:47 pm
by cranny
first off , for WOT , you actually have to floor it , lol. if not its useless. get the car in 3rd gear at 2k rpm , floor it instantly , hold it till redline. just like a dyno pull. if you want to part throttle tune the car , w have to first set the cam angles to do so , if you want it done , i can do it.


heres your map back with a couple changes. took a little fuel out of the entire high cam cause its rich as hell. took a shade of timing out of a couple spots cause you had a couple knocks. why its bucking like that , i dont know buddy off hand , you should check your plugs. your fuel map looks odd to me as far as its curves/smoothness.

Posted: Wed Apr 22, 2009 6:45 am
by Anointeddc5
Thanks man I will do a 3rd gear run on my way to work with your new map and post the data log when I get home tonight. I really appreciate the help

Posted: Wed Apr 22, 2009 8:24 am
by Anointeddc5
Ok well that wasn't good, lol. I uploaded the new map and now the car won't start, I tried going back to the old map and other maps I've had but no luck. The car turns over but immediately shuts off :?: Any suggestions? Should I try clearing the security and what not?

Posted: Wed Apr 22, 2009 9:21 am
by Spunkster
clear security and upload a new calibration from File, New.

Posted: Wed Apr 22, 2009 10:06 am
by Anointeddc5
Thank you I will try that when I get home. :D

Posted: Wed Apr 22, 2009 1:53 pm
by Anointeddc5
Well I got the car back on after doing what you said, and ran a 3rd gear datalog with the right map this time (the one I posted earlier was an older one) and I will post them up tonight after work. Cranny with my foot to the floor the TPS read 98 so it is still a WOT run in case you are wondering, I may need to recalibrate the TPS though. Thanks again for all your help I really appreciate it.

Posted: Wed Apr 22, 2009 7:59 pm
by Anointeddc5
OK here is the correct map and a 3rd gear datalog to "redline" I am getting cut at 7500rpm for some reason.

Posted: Mon Apr 27, 2009 8:08 am
by Hondata
The rev limit is because the engine coolant is 150 degrees.

Posted: Mon Apr 27, 2009 11:29 am
by Anointeddc5
So what is the temperature it should be at? The reason I ask is b/c if it is too cold it still happens when I've been driving the car for a while.

Posted: Tue Apr 28, 2009 7:52 am
by Hondata
Normal temperature is 185 degrees. If you're below about 175, then look at your thermostat.

Posted: Tue Apr 28, 2009 9:39 am
by Anointeddc5
Thank you for all the help I will check that asap. So besides the temp thing would you say that the rest can be fixed with a new tune?

Posted: Wed Apr 29, 2009 7:51 am
by Hondata
With cascading errors you need to fix the first problem, then re-test.

Posted: Wed Apr 29, 2009 10:38 am
by Anointeddc5
Will do, once I get results I will update the thread with my findings. Thanks again.