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odd bogging / hesitation on a fast shift

Posted: Fri Jan 25, 2008 7:27 pm
by ibiot
Look at the attached calibration / datalog and look at the 1 - 2 shift. I took it up to 6600, shifted, and when I hit 2nd it kinda felt like it was hitting launch control. You can see the rpms go wild right when I hit 2nd gear.

It does that in every gear on a fast shift for a second or two and smooths out. It does not do that if I granny shift it. All the sensors and everything else check ok to me. Can anybody see a problem?

Car: 96 civic HX bone stock except:
Turbo: IHI RHF5
ECU: P28

Posted: Mon Jan 28, 2008 10:16 am
by Hondata
Try reducing the amount of throttle tip in fuel. Also, your battery voltage is falling under load.

Posted: Mon Jan 28, 2008 11:01 am
by Spunkster
The engine is also not warm and you are getting huge compensation for fuel.