ok heres the deal. just installed maxbore serviced throttle body, 440 injectors on my 11.5 comp b18c1 running on a p28 chipped for hondata and to engine specs. no cel. red light on hondata is not flashing. spark plugs are black


so now that i given you the low down. my problem is when i open the throttle
not even a 1/4 of the way car starts to bog out. if i open more then a 1/4 the car will stall. now please understand i dont expect the car to run 100%. that will come with the proper tuning(a dyno). i just want to be able to drive it. anyones input would be appreciated thanks.

 

hey what model hondata do you have when we go to open it, it ask you for the unlock code but i bough the car with the hondata in it so i dont have that number do you remember yours by any chance i would appreciate it if you could get it to me

 

unlock code dont no anything about it im new to this system. but to answer your question its an s200

 

you know when you open the program on your labtop and you go to ecu then ecu information you have to put in a number what number did you put in or did you not have to put in anything

 

you go to ecu on the top then ecu information then you go to datalogger you type in your serial number then one other thing then you have to type an unlock code

 

sorry man havent gotten that far into yet. focusing on getting the car to run some what decent right now.

 

The injector correction factor might not have been properly set yet. Did you tell whomever you bought the S200 from about the injectors you're running?

If you don't know what size injectors the program is using, then you need to get it tuned ASAP otherwise you'll wash down the cylinder walls. If you know somebody who has the ROMeditor software and a chip burner, then you can have them burn you a new start map....not the greatest calibration to use still, but it's gotta be better than using one with the improper injector correction factor.

You may be able to run on a set of 240cc/min OBD-1 injectors, but that's just guessing at what the correction factor might be. Safest bet is to have it changed in the chip.

As for the ROMeditor key code, call Hondata to get a new one buddy.

 

OK....I just reread your post and if you go back to whatever size injectors you were running before, then you will be better off.....unless they were OBD-2 injectors....then that would just be a hassle to swap the injector clips back and forth just to get by.

In that case, just have it changed or completely tuned ASAP.

 

the chip was mapped for 440 injectors

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IN VTEC &raquo;</TD></TR><TR><TD CLASS="quote">OK....I just reread your post and if you go back to whatever size injectors you were running before, then you will be better off.....unless they were OBD-2 injectors....then that would just be a hassle to swap the injector clips back and forth just to get by.

yeah no going backwards now


In that case, just have it changed or completely tuned ASAP.</TD></TR></TABLE>

cant get it tuned on a dyno. car wont run to get there.

 

Well, that's an interesting dilemma. Maybe the accel pump parameter is too rich...hmm. Matching the throttle tip-in enrichment to the injector correction factor is a good place to start.

Take the chip itself to somebody with a burner and the ROMeditor software. They can pull the file off your chip and have a look at it, then make changes as needed that might get you back on the road again.

I'd also have a look at the base LO cam fuel map and compare it to another similarly displaced/cammed motor to see if the numbers are really far off. Without a lambda meter, it's the best you can do. Whomever created the file you're running on now, may have intentionally increased the inj. output values.

How about fuel pressure? Where does it sit now with the vacuum reference removed?

 

yeah i was just out looking under and i come to the same conclusion. something with mapping on that chip is not right. pulled plugs one and two where wet with fuel. i know a local shop that can format a new chip. as far as the fuel pressure i just went and bought a 90 deg. elbow for the fuel filter so i can monitor that as well. thanks for the input.

 

in vtec i was revieving your above statement. what would be the purpose of increasing the inj. output values.

 

If they added more fuel to the fuel base map, then it'll just make it even richer. Sometimes people add more inj. pulsewidth to run the start map on the rich side, but it shouldn't be so rich that the engine is bogging.

On a side note that might be related: Larger injectors need more pulsewidth because they open slower and spend a greater portion of inj. open time not flowing the full amount of fuel than a smaller injector. So, the person who created the file may have added too much to compensate for the injector dead time.