Terrible acceleration from a stop

Calibrations for FlashPro Manager - Use all calibrations at your own risk (dyno tuning recommended)

Post Reply
civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Terrible acceleration from a stop

Post by civicboi58 » Tue Jun 28, 2016 2:51 pm

Anyone else have this problem? I've tried everything increasing timing decreasing timing, increased the throttle plate table. It seems to drop REALLY rich when a datalog it so I tried leaning it out and still does it I have no idea what to do. Someone please help

User avatar
Spunkster
Site Admin
Posts: 17454
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata
Contact:

Re: Terrible acceleration from a stop

Post by Spunkster » Tue Jun 28, 2016 3:26 pm

Have you discussed this with your tuner?

civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Re: Terrible acceleration from a stop

Post by civicboi58 » Tue Jun 28, 2016 6:43 pm

I'm trying to tune it myself cause I'm too broke to take it to a tune shop lol

pepperdanky
Posts: 81
Joined: Mon Oct 14, 2013 6:14 am

Re: Terrible acceleration from a stop

Post by pepperdanky » Wed Jun 29, 2016 5:20 am

Have you unchecked this?

Throttle dampening
Image
The standard ECU will slow the throttle opening when in first gear with the vehicle moving, which may result in a jerk once the throttle opens fully. This may be disabled.

civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Re: Terrible acceleration from a stop

Post by civicboi58 » Wed Jun 29, 2016 7:25 am

Where would I find that?

pepperdanky
Posts: 81
Joined: Mon Oct 14, 2013 6:14 am

Re: Terrible acceleration from a stop

Post by pepperdanky » Wed Jun 29, 2016 8:52 am


civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Re: Terrible acceleration from a stop

Post by civicboi58 » Wed Jun 29, 2016 9:31 am

I did. I even printed out directions. I just graduated from WyoTech and my tuning instructor didn't help me out at all so now I'm stuck trying to figure this shit out on my own from what I learned from school. I looked all through hondata for the throttle parameter and couldn't find it

pepperdanky
Posts: 81
Joined: Mon Oct 14, 2013 6:14 am

Re: Terrible acceleration from a stop

Post by pepperdanky » Wed Jun 29, 2016 12:43 pm

What vehicle? Modifications? The option may not be available for your car.

civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Re: Terrible acceleration from a stop

Post by civicboi58 » Wed Jun 29, 2016 1:31 pm

2010 civic ex. Full exhaust cold air intake skunk 2 cam. Im thinking the problem might be because I have a bigger air filter on the intake than weapon r gave me. The old one got all dirty and its like 2 years old now so I got a new one and its a little bigger than the old one

civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Re: Terrible acceleration from a stop

Post by civicboi58 » Wed Jun 29, 2016 2:00 pm

I'll try to explain what it does... When I come to a stop at a red light or something and push on the gas pedal itll like almost stall out or something like its not getting enough air or something. I'm not trying to say that it accelerates like a slug it just doesn't accelerate at all until I get to a certain speed or rpm. Its hard to explain its something you'd have to experience to understand what I mean

pepperdanky
Posts: 81
Joined: Mon Oct 14, 2013 6:14 am

Re: Terrible acceleration from a stop

Post by pepperdanky » Wed Jun 29, 2016 4:37 pm

You have disabled the AFM and are using MAP fuel tables?

civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Re: Terrible acceleration from a stop

Post by civicboi58 » Wed Jun 29, 2016 4:46 pm

I don't think so. I don't have MAP fuel tables checked and I can still edit the AFM table

pepperdanky
Posts: 81
Joined: Mon Oct 14, 2013 6:14 am

Re: Terrible acceleration from a stop

Post by pepperdanky » Thu Jun 30, 2016 3:58 am

The problem is your AFM reading incorrectly. Changing the intake from stock without re-scaling the AFM will cause the bogging you are experiencing.

See: https://www.hondata.com/help/flashpro/t ... m_flow.htm

Depending on how poorly the intake was designed, it may be easier to use speed density (MAP fuel tables) to get the car running well.

civicboi58
Posts: 10
Joined: Thu Jun 09, 2016 8:35 am

Re: Terrible acceleration from a stop

Post by civicboi58 » Thu Jun 30, 2016 6:57 am

See, my instructor from school never told me any of that, I tried data logging it and editing the AFM chart how the directions tell me where it was rich or lean and it made it worse so I just put everything back. I might just buy the right size filter from auto zone and hopefully itll fix the problem. It also doesn't accelerate well up hills in 4th gear like it used to, even up small hills so now I always have to shift down to 3rd gear to speed up. That might be because of the filter too

adamkc98@yahoo.com
Posts: 1
Joined: Fri Jan 25, 2019 9:04 am

Re: Terrible acceleration from a stop

Post by adamkc98@yahoo.com » Fri Jan 25, 2019 9:14 am

civicboi58 wrote:
Wed Jun 29, 2016 2:00 pm
I'll try to explain what it does... When I come to a stop at a red light or something and push on the gas pedal itll like almost stall out or something like its not getting enough air or something. I'm not trying to say that it accelerates like a slug it just doesn't accelerate at all until I get to a certain speed or rpm. Its hard to explain its something you'd have to experience to understand what I mean
its your mas air flow sensor ive had this problem for 2 years now 3k spent in fixes and and inspections diognastics. turned out to be my maf if its not made by hitachi i think its called dont purchase it. i thought it couldnt be it cause i jus tbought a new oone expiensive to from autozxone stay away from there get one fromnappa and see how she performs

Post Reply