I have a 1991 civic cx and i always thought the rev limiter was 6800 but the rev limiter varies from 7200 to 7800. I think the computer is differnt (it does not have a chip) the code is x30 MG i dont know what is going on??????? Can you help me

Thanks

 

i would chaulk it up to the inaccuracy of the oem tach @ high rpm, lol.

 

also for those who dont know..

88-91 CDN Civic CX = 88-91 Civic Std

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx_88_si &raquo;</TD></TR><TR><TD CLASS="quote">i would chaulk it up to the inaccuracy of the oem tach @ high rpm, lol.</TD></TR></TABLE> But i have an aftermarket tach in it and i just got it calibrated???????????????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by obysr5 &raquo;</TD></TR><TR><TD CLASS="quote"> But i have an aftermarket tach in it and i just got it calibrated???????????????</TD></TR></TABLE>

who knows then man, you're probably reading the wrong markings for the ecu model.. check the serial number xxxx - pm? - xxxx

 

Get a timing light and rev her till rev limiter and see what it is. A timing light is much more acurate for RPM then a tach...it runs of the juice going to the spark plug, how much more accurate do you want it to get.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx_88_si &raquo;</TD></TR><TR><TD CLASS="quote">

who knows then man, you're probably reading the wrong markings for the ecu model.. check the serial number xxxx - pm? - xxxx</TD></TR></TABLE>

The code on the computer is pm5 x30 and in big letters it says MG

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx_88_si &raquo;</TD></TR><TR><TD CLASS="quote">also for those who dont know..

88-91 CDN Civic CX = 88-91 Civic Std</TD></TR></TABLE>

My buddy has Civic std and its 4-speed my cx is 5-speed

 

cx is the standard in canada...but i think Honda of Canada is jacked cuz i have a dx motor in my cx (unless ther is no cx motor) and an oem sunroof. w/e tho..im not complaining