ok I own a shop and I never messed with Honda OBDII. I found two 2001 V-TEC H22 engines for sale, but can anyone on here chip these ECU's?
Or can you even run Hondata on these?
They are USDM Accord engines with Automatic, I would not mind having them if I can bolt one on my F23 Five speed, and chip the ECU.

MADMIKE...

 

Your best bet is to run them off an OBD1 ecu. That generation prelude ECU has an immobilizer, that cannot always be disabled, unlike most of the other IMM.

-PHiZ

 

Most of the '96-'01 Honda ECUs have their processor and memory joined together as one unit. You can't replace the memory without replacing the processor, which makes the chipping process a bit too expensive and nobody has really bothered to try.

 

Well, sorta.

I mean, without even getting into the underground aspects of it. You can buy chipped OBD2 stuff from JET. (Toda too, but I'm not sure if you can in the US)

I have a chipped OBD2A P2P sitting right here as a matter of fact. Richard has an emulator board that replaces the stock MPU (aka the ThunderChip, haha)
-PHiZ

 

Technically OBDII cannot be 'chipped' some companies can do OBDII tuning but it isnt going to give the base map that the OBDI will

OBDII sucks...OBDI owns (ie Hondata tuning available)

 

PHiZ ; OK if I run an OBD1 ECU then I am going to have to change the injectors, and what sensors? probally the wire harness? Also these engines are on automatic trans, and I want to use one with a five speed. I would not even consider these 2001 engines but they are at such a good price because no one else wants to mess with OBDII. Will your OBD2A P2P run this engine, and what else would I need??

thanks for all the info PHiZ, I was hoping you would see this....
madmike....

 

I don't have the H22 background, I have a B series and D series background.

That being said, an OBD1 prelude ECU should run fine (P13). There shouldn't really be any auto tranny considerations. IN the civic and tegs, there is no modifications neccesary to run an OBD2 motor off an OBD1 ecu. CKP sensor is the same, and everything else is the same.

Do some more research, I'm sure ppl have done this swap a whole bunch, you'll learn the little tricks, like if I remember correctly on 95-96 prelude chassis, they switched pins A1 and A15 or something to do with fuel pumpery. Sometimes IACV is slightly different between motors, and FITV is sometimes different between auto/manual.

Something also to consider, OBD2 prelude ECUs aren't going to do you much good because of the built in immobilizer function, so you'll need the (key?) that matches the ecu (could be built into the key cylinder in the steering column too, dunno.)

-PHiZ

 

Thanks bro, that sure answers all the questions I had, I might just grab one of these, we have to start messing with the newer stuff sooner or later to learn, or we be left behind right???

 

You can use any number of older ECUs to run the newer engines just fine. It's a lot easier to use an older ECU on a newer engine and just not use a couple of sensors on the engine (because the ECU doesn't look for them) than to run an older engine with a newer ECU (because the ECU looks for sensors that aren't there).

 

That sounds like the way I will go, thanks!