HXMan

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2R714 &raquo;</TD></TR><TR><TD CLASS="quote">

There is a theory being thrown around that it has something to do with OBDII cars and the 3bar map sensor. Don't know how many of you are originally OBDII cars.</TD></TR></TABLE>

My old car with hondata had the hesistation problem as well. I was running stock injectors, stock map sensor, and a stock b16 program.

QHP

10psi daily and 16psi at the track so I have to keep the 3bar sensor.

true

Just my quick note on the hesitation issue. I started with a p72 tables on my p28 since I'm running a b18c using the ps28 (only makes sense), and my car had the hesitation with that map stock out of the box. I got a tip from someone at Hondata to try the p30 map as my base. Is anyone who's using p28 to run their b18c using the OEM gsr intake manifold?? Probably very few! Looks like the p72 secondary runners have an impact on the map because now after I retuned starting with the p30, the car has never run so OEMish. No hesitation yet. I would say try starting with a p30 basemap (no mapping for the secondaries). Eventhough they don't start at 3k (which seems to be the prob), it really did seem to help a lot.

-iLLuZioN-B18C1

hey glagola1


did you get the tuning done in GA??
who tuned your car?

shermanyang

iTrader: (1)

damn, i really need to get my hondata retuned. i figured it was just a fuel problem that was causing the hesitation because everytime my car hesitated, my a/f meter would read lean...or would just die. i'm gonna try changing O2's and see if that helps. gosh i miss those few days when i got right off the dyno after being tuned and it ran perfect

methods

I am embarrassed to admit that I did not read a single post of the 4 pages… but I can say this right off the bat:

It is not the hondata that is causing hesitation…. It is clearly your tune. It does not matter what ecu you are running, how much boost, these injectors, those headers, doesn’t matter. You can always tune the car to a steady state. Hesitations, stutters, hiccups, farts… whatever… they are all in the tune

(unless of course, you have a mechanical problem… in which case, Hondata is not the culprit)

I suggest getting a new tuner.

Good luck, and sorry for not reading the posts. If I am way off base, I apologize.

P.S. Use the S200 shipping maps, they are good.

P.S.S. If anyone is in the bay area, I can guarantee I will get out your “stutters� free of charge. I have a WB02, emulator, burner, etc. Its all in the tune.

glagola1

Naw, You're wrong Methods. Try reading the four pages first.

I had Ed at Balanced Performance do my tuning.

GruvyTune

ok.
i just built a new project and i get the same dreaded hesitation. h22a4 running on a p72 72lb injectors

guess its gonna take some time tuning it out but right now with minimal tuning it is a horrible cough at the same location always described.


torin

ahobbs

I have the same hesitation. using a p75 ecu. Mine was tuned by Tony but we didn't do street tuning. I've just learned to live with it. It doesn't hurt anthing as well.

philo

This is exactly right, when tuned with a wideband the car will hesitate at 12.5:1, you need to tune it rich in this areas. Even as rich as 10.5:1 in this specific range it runs a lot better.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GruvyTune &raquo;</TD></TR><TR><TD CLASS="quote">that part throttle hesitation is a problem and plagues the p72 more than the p28.
it can be tuned out but the method defies any logic with the hondata.

the only clue i can give you is:
columns 5 and 6 on the low cam MAP (these usually land up being the rows that have a large gap between them when you look at the 2D map---it seems to put the 6th and 7th columns almost overlapping when you get it right)....crank up the fuel about 15% more than you normally would for these 2 MAP columns.

you can thank me later. took many tuning sessions to figure this out. problem is, you land up with a rich area that really should still be running in closed loop. I tried timing changes and that did nothing. No one at hondata has every truly acknowledged that this is an issue but so far, this seems to be the only way to tune it out.</TD></TR></TABLE>

MRSI00

Because of this hesitation problem, my car is at hondata right now. They are doing some testing on my car, hopefully they can figure out what is going on with the hesitation. i will let everyone know about the progress.

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MRSI00 &raquo;</TD></TR><TR><TD CLASS="quote">Because of this hesitation problem, my car is at hondata right now. They are doing some testing on my car, hopefully they can figure out what is going on with the hesitation. i will let everyone know about the progress.</TD></TR></TABLE>

Keep us updated.

DC2R714

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MRSI00 &raquo;</TD></TR><TR><TD CLASS="quote">Because of this hesitation problem, my car is at hondata right now. They are doing some testing on my car, hopefully they can figure out what is going on with the hesitation. i will let everyone know about the progress.</TD></TR></TABLE>

ya I heard that hondata is looking into it and will probably come out with updated software that will fix this. Hope it comes out soon.

GruvyTune

i made some adjustments on the maps on my prelude and i can get the major hesitation to go away but there is alway just a bit of a choke when you come off and then back on the throttle just every so slightly.

Its enough to be very very annoying.

DC2R714

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GruvyTune &raquo;</TD></TR><TR><TD CLASS="quote">
Its enough to be very very annoying.</TD></TR></TABLE>

I totally hear ya Torin. This is pissin me off to no end. I might switch for AEM later this year if I cant get this **** straight.

GruvyTune

get an aem and you may pull all your hair out getting it to run like stock.

RyanEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VaporTrail &raquo;</TD></TR><TR><TD CLASS="quote">i have cars that run perfect, many of them in fact</TD></TR></TABLE>

John made my car run perfect.

tslag

I have the same problem. I just got my car tuned but we thought it was plugs,wires and distributor cap. I can't stand the hesitation. I hope someone can figure it out.

HXMan

The way everyone seems to have the problem would make me think it is a software issue...........

Tuning does fix it sometimes, but then why do some people have the problem before tuning and some don't?

DC2R714

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HXMan &raquo;</TD></TR><TR><TD CLASS="quote">The way everyone seems to have the problem would make me think it is a software issue .........</TD></TR></TABLE>

exactly. Hondata is supposedly looking into it.

HXMan

I had the problem like 2 years ago. You would think they would have put a little more effort into finding the problem. Espically when they are selling so many units now.

When I bought mine not many people had Hondata.

GruvyTune

I still stand by their product and their (Doug's) customer support. I sell Hondata to others and provide exceptional tuning. Its the best out there for what it does. It not a true standalone and relies on the basic calibrations and correction tables in the stock ecu.

I bought one for my own car and did seriously consider investing in another standalone (not necessarily AEM, either). Who knows, I may still buy one but for now, I'm giving Hondata a chance to make my car run. So far its looking favorable.


torin

DC2R714

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GruvyTune &raquo;</TD></TR><TR><TD CLASS="quote">get an aem and you may pull all your hair out getting it to run like stock.</TD></TR></TABLE>

I actually ran with a basemap on AEM before I tuned my hondata and I gotta tell you it was better than running in partial throttle with hondata.

HXMan

Oh I totally stand by Hondata as well. Doug is an A++ guy, I have talked with him on the phone quite a few times.

While I had the hiccup with my car, it wasn't that bad, just annoying.

The drivability when I had my turbo was excellent, and that is why I will be buying another hondata setup this spring.

The only thing I really wish is that I had a good hondata tuner closer then 480 miles.

shermanyang

iTrader: (1)

Damn, still haven't solved that mysterious hiccup ...rich to lean...to lean...to lean problem yet. a lot of people i've talked to did not have this problem after dyno tuning...only after driving on the streets a few weeks/months after then does it start to appear. i really wonder what could be the cause of this?!!? anyone have an answer?