alright the ls swap is finised but it wont rev out past 5.5k im running a pr4 ecu i believe and that should able it to rev out to 7k but doesnt its in a 95 eg the only cel is 43 which is the fuel supply system and thats because im running the wrong injectors but im fixng to put the ls injectors in ti 2day but idk why its bouncing off rev limiter at 5.5 if nebody knows help me out please

 

i had the same problem...my ls vtec would'nt pass 2000 rpm...i change the throttle possiton sensor....than everything was all good...

 

word, i have an ls motor in my civic, and i can rev all most 8000. check your tps.

 

Make sure you dont have your MAP and TPS plugs switched around. This happens a lot. Do you have your IAT plugged in and functional? A lot of people ask about why their car is running like ****....and they leave out the part about "I have my IAT sitting on my desk...it's broken".

MAP, IAT, and TPS are a majority of what control fuel curve in a speed/density system. You need those 3 sensors AT LEAST.

-get a wiring diagram
-make sure your TPS and MAP are plugged into the right connector
-make sure MAP, TPS, and IAT are present and fully functional.

 

x2 on the tps and map sensor plugs and if thats not the problem i would change the tps

 

ur car might be in limp mode

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sfgreddiedsi &raquo;</TD></TR><TR><TD CLASS="quote">ur car might be in limp mode</TD></TR></TABLE>

....but why?

 

all 3 of those sensors are plugged in it revs quick as **** and its not in limp mode the only code that im throwing is for the o2 i changed out the ecu earlier and it still didnt rev out it doesnt make any sense to me if the map or tps was switched around it wouldnt revout past like 3.5k and if it was in limp mode it would only rev to like 3k i believe

 

did you check it with a timing light?

 

Is the speed sensor plugged in? Does the speedo work properly?

 

yeah we checked it with a timeing light and put it in perfect time and it still wont rev out and yes the vss is plugged in and the speedo is working right...it doesnt make any sense