99+ ls1 ecm and harness on a 98 ls1 motor question??
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
hi there, im new to the forum and to the ls1 world.
as you all know that it is hard and expensive to get a hand on a 98 ls1 M/T ecm and also the engine harness.
and the motor that i have is from a 98 transam
now here's my question..Does anyone know if i can get a 99 or 2000 ecm, harness and swap it to the 98 ls1? will it plug in with no problem?
ill be thankful if anybody could help me figure this out thanks guys
as you all know that it is hard and expensive to get a hand on a 98 ls1 M/T ecm and also the engine harness.
and the motor that i have is from a 98 transam
now here's my question..Does anyone know if i can get a 99 or 2000 ecm, harness and swap it to the 98 ls1? will it plug in with no problem?
ill be thankful if anybody could help me figure this out thanks guys
#3
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
but hey are you interested in selling one of your 98 ecm? im looking for a 6 speed one
#4
11 Second Club
iTrader: (48)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
injectors are the same, the water temp on the 98 is a 3 wire the 99+ is a 2 wire, swap out that sensor. Map is the same, maf is the same, oil press is the same. 02 is the same. iac and tps are the same.
if you have a engine harness you can use that with one of my PCM's. If you DONT have a harness or PCM then you are better in the long run to get a 99+ (the 99+ have more ability to fine tune) Some dont like the 98's but I have no major issue with them, they do have their tuning drawbacks so dont get me wrong.
if you have a engine harness you can use that with one of my PCM's. If you DONT have a harness or PCM then you are better in the long run to get a 99+ (the 99+ have more ability to fine tune) Some dont like the 98's but I have no major issue with them, they do have their tuning drawbacks so dont get me wrong.