Project BlackHeart

**4g63lover** · 01-23-2010, 12:59 AM

OMGoodness. You are awesome Matt!!! This will definitely move 02-03 guys into the right direction.

I do have one question though, let's say I have a full 5-speed set-up from a 99-00 including the 99-00 ECU and harness, technically if I swap all of it over to an 02-03 it will not throw codes right?

**beam514** · 01-23-2010, 05:54 AM

good news and nice work Matt

**SPD_FRK** · 01-23-2010, 11:06 AM

*edit

**02galant** · 01-23-2010, 11:12 AM

Keep us posted on the 5 Speed hack, if that works then there was a reason i have held onto this auto tranny for the last 2 years hoping something would come of it. Awesome find Matt!!

**4g63lover** · 01-23-2010, 12:56 PM

Originally Posted by SPD_FRK

Exactly!

Don't forget this will be for the 01-03 guys who have the code issue. The only thing we have to do is cross check the pin out from the 01-03 ECUs and compare to our 99-00 ECUs. I believe there are some pins that need to either be moved or added for us (99-00 folks) to swap into the 01+ ECUs but nothing serious. I know the one major change is the additional O2 sensors that the ECU reads, but from reading on Club3G it sounds like you can tap into the 99-00s existing pre cat, and after cat O2 sensors so the ECU will read "4" instead of missing 2. FSM 13A-417-I for 4cyl, and 13B-499-I for V6 have the ECU pinouts to check, but it seems pretty straight forward.

This is where I'm lost, why would I need to move pins and what not if I have the WHOLE ECU and Harness from the 99-00? Just for the sake of No code for the 5-speed swap, not for tuning reasons.

**SPD_FRK** · 01-23-2010, 02:14 PM

*edit

**4g63lover** · 01-23-2010, 02:18 PM

Originally Posted by SPD_FRK

If you have the 99-00 ECU and harness then yea, no codes...all you are doing is ripping the old stuff out and putting in the 99-00...but why?

The problem with this though is you are basically taking "two steps back" in any build progress, or growth capabilities later. If you are a 99-00 Galant, you will not have any codes from doing the 5spd swap, great...but you have no EcuFlash option. If you are a 01-03 Galant 5spd swapped, there will be the 5 solenoid codes thrown, but you are able to flash and tune with EcuFlash.

The 99-00 ECUs are really just "limited" and they really aren't worth swapping over to if you are a 01+ Galant. If what I have found works to resolve the codes from being thrown then we eliminate a common issue for the 01+ ECU and 5spd swapped drivers.

Yeah that does suck. But you could always go piggyback. I know it's more money but it's the easy way to do it IMO. As soon as I graduate, I will start colelcting turbo parts and most likely an EMU. Then Once, I swap the motor, it's full EVO IX ECU and harness time!

**SPD_FRK** · 01-23-2010, 02:26 PM

*edit

**4g63lover** · 01-24-2010, 03:22 PM

Originally Posted by SPD_FRK

You can spend the $200+ for a piggyback unit...but I wouldn't say it's easier than swapping the ECU to an 01+. For the 4cyl like you have though the Evo ECU swap has been discussed in great detail to be the "best" option so you can monitor knock. You can swap to the M/T 3rd gen Eclipse ECU and flash the Evo ROM to read above 100%, but no knock monitoring. The Evo ECU is likely the best choice still for those who have a boosted 4cyl though because it will monitor knock and read above 100%.

If you want to do a full harness and Evo ECU, don't waste your money on any piggyback...everything can be done within that ECU and save you a few hundred dollars in the process.

Ah. You're right that makes more sense. EVO ECU and custom harness while it's on the 4G64 Single slammer, then just swap the harness once I'm ready to go 4G63.

or

I could just do the 4G63 swap after I graduate and just drive the 4G64 'til it dies. Though I am planning on getting another G sometime in the future and 5-speed swap it for a DD and I really want an 02 which is why I want to just swap the 99-00 harness and ECU since it wont be heavily modified to need tuning.