1999 to 2001-03 ECU Swap questions?

[remarque]

I've been looking into this ECU swap, because I want to use ECU Flash and have to some questions. I know that I will need one that the same spec as my car, thats not a problem. Will my 99' gauges work properly with a 2002-2003 ECU? and what about the immobilizer?

[underated]

if your going to use ecu flash use it to read your current ecu and get the immobilizer code... then use it to flash the old code into your new ecu... or you could delete it all together but i wouldn't

you will need the ecu and the camshaft reluctor from the 01+ car

[remarque]

Thanks, so I can use ECU flash to read my current ECU but I cant make any changes to it? What is a camshaft reluctor? and where is it located?

[underated]

yah you can read the 99-00 ecu you just cant make any changes

to get to the reluctor you have to take off the camshaft position sensor housing and its held on by 1 12mm bolt

your current reluctor looks like the one on the left you want the one thats on the right

[WarmAndSCSI]

I wasn't even able to read the ROM off boostzealot's 2000 6G72 ECU.

[underated]

really i've read a few on some local cars

with version 1.31+ you can read ecu's using the H8 processor but you cant flash them because of the lockout problem

[Danger DANJ]

If you have a '99, you don't have an immobilizer or a chip in your key. So when you get the new ECU, just have the immobilzer in it turned off.

[remarque]

So, any info on the gauges? I'm replacing them anyway because I messed them up while installing S7 gauges, just need to now if they will work.

[spdracr]

i would say yes the gauges should work and if u change the gauges u r gonna have one problem and that is ur milage is saved in the gauges so whatever gauges u install will show the milage that was on the car it came from

someone correct me if im wrong

[remarque]

You can change out the mileage display box, that what I did.

[remarque]

I'm having trouble finding the reluctor, if I buy a 2001-03 camshaft position sensor the reluctor should be included? Just checking before I order it. Thanks

[WarmAndSCSI]

really i've read a few on some local cars

with version 1.31+ you can read ecu's using the H8 processor but you cant flash them because of the lockout problem

Thanks for the tip, it was way before 1.31 when I tried this.

[Danger DANJ]

Do you have an I4 or V6?

I'm pretty sure that if you go with an '03+ ECU, that some of the pin outs are different... one of them being the speedometer. Atleast that's the way it is for the I4. I'm sure the V6 too.

If you have an I4, you only need to buy the reluctor by itself. The one you want is part# MD374910.

If you have a V6, then you won't need that reluctor pictured a few posts up. The V6 has a distributor with a reluctor blade. I believe the reluctor blade was changed in the 2002 models, so if you have a V6, try and get an ECU from a 2001. If you get an ECU from a 2002+, you need to change the reluctor blade.

[remarque]

Thanks, I have a I4. I didnt know what section to look in when I was looking for it.

[remarque]

A little update, I got a 01 ECU and I'm still waiting on the reluctor. How do I go about disabling the immbolizer?

[darknd666]

if i have a 2002 and i get a 1999 ECU will that get rid of the CELs without having to program it for an immobilizer and will my key work? in other words im trying to be quick and cheap because programming is expensive for me and im a daiy driver, i need my car back cant pass inspection

[galantv600]

I know I'm reviving an old post. I have a 99 galant with a 02 engine and trans. I'm being told ecu/pm/tcu isn't responding properly so my car is stuck on limp mode. Tested solenoids and they all work and the input output speed sensors work. My car is 4 cyl. By me replacing to a 02-03 ecu it is simple as swap and reprogram? And also get the reluctor MD374910..