did honda produce an ecu that was made specially for cali emissions. cuase my buddy has a manual pr4 ecu, obd1 but its throwing the egr code, 12. we can't figure it out, but we were thinking that maybe there are certain ecu's out there that are cali emission legal or something. anyone know

 

ttt

 

up

 

no one knows?

 

pr4 = b18a1 ecu right? in that case, b18's never had EGR's, even in Cali. are u sure ur reading the code right? its not code 10 and code 2?

 

yes, its a pr4, obd 1. yes im reading the code right. auto b18s i thought had egr's.

 

it might be cali emissions specific, like when you buy stuff from hondaautomotiveparts.com, they ask if your car is cali emissions and 49 state emissions. Just a thought...

 

as far as I know, there are no ECUs that are cali specific. My understanding was Honda made all US engines and ECUs according to Cali Emissions.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RidinlowHatch &raquo;</TD></TR><TR><TD CLASS="quote">yes, its a pr4, obd 1. yes im reading the code right. auto b18s i thought had egr's. </TD></TR></TABLE>

nope. no b18's ever had EGR's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dantastic &raquo;</TD></TR><TR><TD CLASS="quote">pr4 = b18a1 ecu right? in that case, b18's never had EGR's, even in Cali. are u sure ur reading the code right? its not code 10 and code 2?</TD></TR></TABLE>

Wrong. The auto B18a's DID have EGR's

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spade &raquo;</TD></TR><TR><TD CLASS="quote">as far as I know, there are no ECUs that are cali specific. My understanding was Honda made all US engines and ECUs according to Cali Emissions.</TD></TR></TABLE>

There are indeed two different emission classes on the ECU's. There is a Cali specific one and a 49 state emissions group.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Eg &raquo;</TD></TR><TR><TD CLASS="quote">Wrong. The auto B18a's DID have EGR's

</TD></TR></TABLE>


0w3n3d! now i know . now if he converts the ecu from auto -&gt; man, will it solve the EGR code? you could also run a p74 or p75 LS ecu right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Eg &raquo;</TD></TR><TR><TD CLASS="quote">There are indeed two different emission classes on the ECU's. There is a Cali specific one and a 49 state emissions group.</TD></TR></TABLE>

i'm pretty sure too. REF's are supposed to only allow CA spec ECU's to be used to BAR a car

 

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

i'm pretty sure too. REF's are supposed to only allow CA spec ECU's to be used to BAR a car</TD></TR></TABLE>

Yep. I learned about the different emissions groups when I reff'd my B17... and yes, they SHOULD only allow the CALI emissions ecu's. Seems to vary depending on the ref you speak to.

 

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


0w3n3d! now i know . now if he converts the ecu from auto -&gt; man, will it solve the EGR code? you could also run a p74 or p75 LS ecu right?</TD></TR></TABLE>

My knowledge of what I have learned says no... But I could be wrong. From what I learned so far regarding ecu chipping/conversions... it will solve the code for the "lock up control solenoid"... but I am not sure about the EGR code. It very well could also remove it. I would say try the conversion and find out. It can't hurt anything so long as your good with soldering.

 

use a p06 chipped with b18a program.

 

thanks guys for solving my mystery. hopefully i will just try to find a p75