just wondering you know how obd2 does emission they just plug into the connector turn on the car and read the ecu to see if there is any code. obd2 cars don't go on rollers any more they don;t even step on the gas. my question is with hondata will it past emission will the obd2 machine have any problems reading the ecu like stock in order to past emission? because i would think it would be a better chance to pass emission by doing the obd2 reading.

 

YOu will need an OBD2 ECU in an OBD2 car with no CELs to pass emissions.

 

yes i know, so if i get hondata for my 98 gsr turbo it can pass emission just as long as the ecu won't throw a cel right?

 

Yes will this work or will they see that it is a modified OBDI ECU? Even with all the sensors and a stock map? Curious????

 

I have faith that a tuned Hondata would pass OBD2 spec emission, at least as far as what comes out of the tailpipe. However, the CANbus utilized in OBD2 does not exist in OBD1 ECUs, so when they go to hook into the the OBD2 ECU whomever is doing the inspection will know something is up. If your emissions inspection for OBD2 includes scanning of what the OBD2 ECU says, Hondata won't work for you.

 

why does hondata reprogram the obd1 ecu only? why could they not reprogram the obd2 ecu and work around or with the obd2 sensor or program in the ecu so that it is readable to pass? just an example i think dsm link uses the obd 2 ecu to reprogram for the dsm car they worked around the obd2 setings or program. correct me if i'm wrong

 

For some reason the OBDII program cannot be altered. This is the reason OBDI ECUs are used.

So even if I use a P30 OBDI ECU in my 00 Si with the same sensors as my OBDII ECU there is some other coding with in it that will throw the Emissions plug-in off? Damn that suks!!!!

 

thanks guys for the info, i just think it would be much easier to do emission by reading the ecu than to measure the exhaust gas.

 

OBD2 can be altered. The development tools, as well as flashable replacement processors, are exhorbinantly priced and all the extra emissions code makes it more difficult than OBD0/OBD1 to fiddle with. It is currently cheaper to switch to OBD1.

OBD0 and OBD1 use cheap external 27C256 chips to store their code. Anybody with the slightest knowledge of microcontrollers has the $80 worth of equipment needed to develop one of those ECUs.

If you look at the new RSX with the flashable processor, set up to have it's program modded via the datalink connector... well, that's a easily developed platform. Expect to see Hondata, other companies, and hobbyists doing more than just reflashing the ECUs for NA in the near future.

OBD2a and OBD2b platforms are just fucked up, and will always remain unsupported, with the exception of a few somewhat pricey chipping options like Autoserv's T-REX II.

 

Sounds to me like you need to put the stock computer in with stock injectors.. Then let the bov off so it can't build any boost. putt putt down to the station and have them scan it. Then take it home and swap it all back over.

 

TTT

Anyone with Hondata and OBDII vehicle passed the scan test?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec.dc2 &raquo;</TD></TR><TR><TD CLASS="quote">TTT

Anyone with Hondata and OBDII vehicle passed the scan test?</TD></TR></TABLE>


not one person?