99+ ecm/harness swap in 98 thread anyone.
#1
TECH Enthusiast
Thread Starter
iTrader: (6)
Join Date: Aug 2006
Location: Atlanta, GA
Posts: 572
Likes: 0
Received 0 Likes
on
0 Posts
99+ ecm/harness swap in 98 thread anyone.
I know we have a thread on here that explains the whole thing but I cant find it..
I want to know about potential problems with the connectors, the VATS unit and other sensors etc...
I want to know about potential problems with the connectors, the VATS unit and other sensors etc...
#2
nothing on the 98 is compatible with 99+ harness or pcm. You would need to either have your 98 body harness repined to match the 99+ body harness or just start pulling out your interior and swap the whole harness.
#6
TECH Fanatic
Originally Posted by Redline-Motorsports
If you go to the 99+ from a 98, you will need a new dash cluster and fuel tank sending unit. If you need a 99+ tank, I have a complete one with sender and all wiring.
#7
TECH Senior Member
I wonder how feasible it would be to run 2 PCMs in the car? feed everything to the 98 sensor as normal... put a temp sensor in the passenger head and run that along w/the rest of the engine/trans control to the other PCM
That way all gauges would work, but the engine and trans would listen to the 99+?
That way all gauges would work, but the engine and trans would listen to the 99+?
Trending Topics
#8
TECH Addict
iTrader: (8)
Join Date: Sep 2005
Location: The beautiful Kingdom of Bahrain
Posts: 2,401
Likes: 0
Received 0 Likes
on
0 Posts
Very intresting thread. I like where this is going. If the only things that need to be changed are the ECM, fuel sending unit and wiring harness whats so hard about that? Isnt that easier than repinning?
#9
TECH Fanatic
iTrader: (24)
Originally Posted by horist
I wonder how feasible it would be to run 2 PCMs in the car? feed everything to the 98 sensor as normal... put a temp sensor in the passenger head and run that along w/the rest of the engine/trans control to the other PCM
That way all gauges would work, but the engine and trans would listen to the 99+?
That way all gauges would work, but the engine and trans would listen to the 99+?
I use my car to guinea pig the harnesses I build for other LSx RX7s, and I can swap between 98 and 99+ harnesses in about 9 minutes and have full gauge and engine function (I do have a 98->99+ Coolant sensor adapter).
#10
FormerVendor
iTrader: (9)
Join Date: May 2003
Location: Jacksonville, Fl
Posts: 1,573
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by horist
I wonder how feasible it would be to run 2 PCMs in the car? feed everything to the 98 sensor as normal... put a temp sensor in the passenger head and run that along w/the rest of the engine/trans control to the other PCM
That way all gauges would work, but the engine and trans would listen to the 99+?
That way all gauges would work, but the engine and trans would listen to the 99+?
#11
FormerVendor
iTrader: (9)
Join Date: May 2003
Location: Jacksonville, Fl
Posts: 1,573
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Honda Hunter
Very intresting thread. I like where this is going. If the only things that need to be changed are the ECM, fuel sending unit and wiring harness whats so hard about that? Isnt that easier than repinning?
Having personally performed a couple of these swaps now, (and assisted over the phone and net with 5 others) one on my own car, a 98 repin and on another 98 in which a 99 harness w/ LS2 motor was implemented I can see the advantages and disadvantages of the unique situations.
Bottom line, the 98 OS is really limited and there are plenty of reasons to upgrade.
Flamesuit on for all the die hard superfast 98 purists.
#12
FormerVendor
iTrader: (9)
Join Date: May 2003
Location: Jacksonville, Fl
Posts: 1,573
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by digitalsolo
It'd be a lot easier to just run aftermarket gauges and just use the 99+ PCM.
I use my car to guinea pig the harnesses I build for other LSx RX7s, and I can swap between 98 and 99+ harnesses in about 9 minutes and have full gauge and engine function (I do have a 98->99+ Coolant sensor adapter).
I use my car to guinea pig the harnesses I build for other LSx RX7s, and I can swap between 98 and 99+ harnesses in about 9 minutes and have full gauge and engine function (I do have a 98->99+ Coolant sensor adapter).