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Running NG48 code NA with big stumble from 2000-3500 rpm's

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Running NG48 code NA with big stumble from 2000-3500 rpm's

Old 09-07-2004, 05:15 PM
  #1  
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Default Running NG48 code NA with big stumble from 2000-3500 rpm's

As it says..
When I floor it like from 1500 at about 2000 rpm's it like bogg's really bad and looses mad power and climbs to 3500 rpm's really slow and after that it's like someone pressed the NOS botle .
What could this be?? I tried changing the fuel table and the ignition, but nothing...I advanced the timing in that region, but it seems to make it worse I dunno not really know...I'm waiting on my Zeitronix WBO2 to get here.
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Old 09-07-2004, 10:14 PM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

You're probbaly rich through that segment of your map.

..will be hard to accurately diagnose until you WB it.
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Old 09-07-2004, 10:52 PM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

My guess is lean...TPS enrichment has been wacky with NG48, and anytime my car 'stumbles' as you put it, it's way lean (18-22 AFRs)
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Old 09-08-2004, 08:01 AM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

hmmm ok thanks guys...now I know it ain't ignition timing.
My WBo2 will be here the latest next week.
I copied my maps to an old NA turboedit bin right now. The one that came with the TE 1.7 my car runs great.. no stumble nothing ..no CEL either...Right now I'm NA and need to pass inpsections so this will be better for it..When I'm boosting i'm switching back to NG48
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Old 09-09-2004, 06:47 PM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

Just ran a bew NG48 slightly tuned code, at cruising it I tap the gas, The car leans out bad!! 17.5-19 afr's
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Old 09-09-2004, 09:15 PM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

Originally Posted by bumblezc
Just ran a bew NG48 slightly tuned code, at cruising it I tap the gas, The car leans out bad!! 17.5-19 afr's
Yep...me too
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Old 09-10-2004, 06:12 PM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

I had alot of problems with ng48.. im currently running ng30 with a little better luck.
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Old 09-11-2004, 09:44 AM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

i get tah stuble as soon as i hit vtec at 5500 rpms.. god that sucks ***. vtec kicks in and then it stumbles goes out then revs up and then gets to vtec and pulls hard... very annoying
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Old 09-12-2004, 03:04 AM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

Originally Posted by xenocron
Originally Posted by bumblezc
Just ran a bew NG48 slightly tuned code, at cruising it I tap the gas, The car leans out bad!! 17.5-19 afr's
Yep...me too
..I haven't read anything abotu this thread... but, uh, if yoiu run a stock ECU, and do the same thing, guess what.. the same effect happends.

It has to do with the tip-in. Thank Honda for that one, not the ROM.
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Old 09-13-2004, 01:39 PM
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Default Re:Running NG48 code NA with big stumble from 2000-3500 rpm's

Cool, but why does not seem so bad with ng30?
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