Nextelbuddy

i had my car runed a while ago on the stock motor to about 12-13 psi and we stopped. now my compresion is lower and i am running a test pipe and i noticed my boost goes higher to about 15-16 psi and it was fine but lately i have been hitting what feels like boost cut or something. when im hitting full boost the motor will cut out and my CEL will flash for a second and go away if i turn the boost down back to about 12 psi it doesnt do it anymore but when i turn the boost back up to about 15 psi ill hit that CUT again and the CEL will flash for a split second and go away.

does anyone think my hondata is doing this? my tuner is out of town and i cant ask him but i think he might have programmed my hondata to cut out if i spiked to a certain boost level coudl this be true?

grndcont

ya, i think your hitting the cut.

Silverbeast

yep that would be the boost cut.

Do you have a stock map sensor or a GM?

TheShodan

iTrader: (14)

Yeah. Happened to me. Boost cut

Nextelbuddy

i am running the gm 3 bar map sensor... my tuner never told me he put boost cut on my hondata s200b..... any one else knwo if this could be it?

Nextelbuddy

bump

DaX

iTrader: (1)

I would go with what Silverbeast says, he is a Hondata dealer.

TurboTegB18c

definately boost cut.

Silverbeast

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nextelbuddy &raquo;</TD></TR><TR><TD CLASS="quote">i am running the gm 3 bar map sensor... my tuner never told me he put boost cut on my hondata s200b..... any one else knwo if this could be it?</TD></TR></TABLE>

It should be the boost cut, however i have seen a car where it was actually faulty map sensor wiring.

More than likley it's a boost cut, sometimes when you switch to the 3 bar map from the stock map it's easy to forget to reset the boost cut for more than 11 psi.

5thgencivic

What code do you guys throw for boost cut. if any of you have jumped it after throwing the CEL? I hit it and pulled the code and it showed one that wasn't even listed... just curious.

Nextelbuddy

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

It should be the boost cut, however i have seen a car where it was actually faulty map sensor wiring.

More than likley it's a boost cut, sometimes when you switch to the 3 bar map from the stock map it's easy to forget to reset the boost cut for more than 11 psi.</TD></TR></TABLE>

well im not sure whats happening then because i am running 13 psi no problem but when i boost 15 psi it does it. and both psi levels are above 11psi.

what exactly is this boost cut? what does it really do is it bad for the motor?

m R g S r

I think its like the rev limiter, it either cuts spark or fuel.

Nextelbuddy

bump

Silverbeast

If you have the 3 bar map sensor, your tuner could have very well put in a 13psi cut, or any cut for that matter to keep things safe or at the level he tuned it at.

The other thing to do is to datalog the run and see what code it's throwing, Hondalogger will show that.

Nextelbuddy

oh ok no problem... what is it exactly that the hondata does that causes this though. is it fuel cut? spark cut? all dependent on that set boost level?

5thgencivic

fuel cut

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 5thgencivic &raquo;</TD></TR><TR><TD CLASS="quote">fuel cut</TD></TR></TABLE>

Right on. Do you have a way to send me the Hondata File? I can tell you from there if it is on.

Sorry if someone already posted this but I don't have a chance to read all the posts.

Nextelbuddy

sorry i do have a way to get the file. its all good if its what you guys say it is im sure thats what it is then. ill know for sure next week when my tuner gets back from vacation and tunes my car again

ladysman

You'll know dude. It is basically the same as a rev limiter. The car will fall on it's nose.

5thgencivic

Yep, just flat out dies pretty much. Almost like the motor just shuts down completely for a moment.

Nextelbuddy

exactly thats what it does. the first time it happened it scared the **** out of me lol.

why doe the CEL flash quickly and then go away when it happens though

Silverbeast

The CEL should be for the MAP sensor

5thgencivic

Scared the crap out of me too, lol. Mine would throw a code that wasn't even listed in the helms when I would hit boost cut, so I dunno. It was 30 something, can't remember.

Silverbeast

Should be Code 3 or 5