2lowteg

I pulled the stock chip out and it says something like 256 on the board instead of the normal 27256 that you would find on integras and civics... can someone PLEASE help and maybe explain?

GhostAccord

No you cannot chip a Honda Accord ECU like you can an OBD1 92-95 Civic & Integra ECU. Doesn't matter what ROM Chip it has on it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Phearable.net Topic - What Honda ecus are chipable?: &raquo;</TD></TR><TR><TD CLASS="quote">
Only a few select type of obd1 92-95 honda/acura engine computers are chipable to use with popular engine management softwares.
USDM Vtec: P28, P72, P61 JDM Vtec: p30, p72, p08, p27, pr3, p91
USDM Non-Vtec: P75, PR4, P05, P06
Some obd0 honda/acura ecus are chipable but these ecus are not compatible with nicer eprom editors, hence we do not support obd0 ecus.
Obd1 ecus will plug & play into 92-95 honda/acuras, while pre-92 & 96-01 vehicles will require a ecu plug conversion harness to use the ecu (sold separately).</TD></TR></TABLE>

HRTuning

Yes, you can chip them, but there's not much support for changing parameters.

pgmfi.org has some of the info you'll want.

2lowteg

thanks for that info however i'm not able to get on there because it won't let me register... maybe you could help me out?

GhostAccord

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HRTuning &raquo;</TD></TR><TR><TD CLASS="quote">Yes, you can chip them, but there's not much support for changing parameters.</TD></TR></TABLE>

I didn't want to lead him down that road. The only Accord ECU that I have seen any one bother to chip is the POA. And it really is a huge waste of time. It would be more advantagous to get yourself an ECU that has an abundance of support & a multitude of editable parameters that can be tuned. Vs an ECU with very little to no support and a few editable parameters.

Does it even have the capabilities to be tuned on a dyno? Or I guess a better question would be are there any tuners out there that would support tuning it on their dyno?

2lowteg, Why do you need to chip your Accord ECU to begin with?

HRTuning

It's not a waste of time if you're looking to get into it. I've done tunes for these and had the P0A/P0B/P0C/etc family datalogging with no trouble.

If you're not looking to get into it and instead just want a tunable system, convert to a Civic/Integra ECU. There's plenty of options available for those.

2lowteg

thank you for the reply, i am indeed wanting to get into it. i have chipped many obd1 and obd0 civic and integra ecus, but those are getting really hard to find and i have quite a few accord ecus and would like to see what i can do with it

HRTuning

Find a way to get on pgmfi. I'm no longer a moderator there so I can't help. I think I outlined some of the P0As info in an Accord/Prelude thread there. I definitely outlined a lot of P13 stuff.

2lowteg

i wish i could.... i've been trying for weeks... any way you could email a mod or admin and let them know my situation or maybe post that stuff over here?

HRTuning

You're not the only one complaining, so I know they already know.

GhostAccord

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HRTuning &raquo;</TD></TR><TR><TD CLASS="quote">It's not a waste of time if you're looking to get into it.</TD></TR></TABLE>

By getting into it are you referring to the development of a ROM editor and helping to decipher the original binary code? Is there a beta ROM editor yet or is it still in development? I can chip and I know electronics some what but when it comes to code, binary and programming stuff I'm a noob for sure.

Good luck with your adventures into Accord ECU's 2lowteg

HRTuning

Developing for the platform, yes.

The only version of NepTune for OBD1 Hondas that I'll ever release to the public is the one that's already out.

Orion Lewis

the real question is if he were to get into chipping and tuning a civic or Integra ecu how would one put a p0a map on p28, p30 ecu?