honda crx losing some power at 4500 rpms help!!!!!!!! it starts to sputter at 4500 rpms. car has set for about a month. sometimes it will crank and some times not. any info please.

this is a b16 honda crx swap

 

search "main relay" with the big red button in the top left corner

 

Not sure way, but I had the same problem with an H22 in a 2000 Si. It was in "limp mode" and mine turned out to be the harmonic balancer. Let me know what you find out. Good luck!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by K20ACRX &raquo;</TD></TR><TR><TD CLASS="quote">Not sure way, but I had the same problem with an H22 in a 2000 Si. It was in "limp mode" and mine turned out to be the harmonic balancer. Let me know what you find out. Good luck! </TD></TR></TABLE>

So you threw a check engine light for an external, mechanical, unwired part of your engine?

 

No, no light, just power loss. If I went over 4k rpm's it would run like crap and sometimes die. Below 4k it just ran like crap.

 

So how can you be in limp mode if you don't have a check engine light?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gibsanez &raquo;</TD></TR><TR><TD CLASS="quote">So how can you be in limp mode if you don't have a check engine light?</TD></TR></TABLE>
I'm not sure. I snapped the the vacuum elbow on the IM to the PBB and crushed the TPS sensor, got a check engine light, it went into limp mode, I replaced the elbow and TPS sensor, the light went out, but it stayed in limp!!

 

clear ur ECU

 

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

For codes. Are you getting a Check Engine Light?