are the 98 and up ls ecu's still called pr4's? or are they a different number? and if so I'm looking for one, preferably 99" or 00", need it for my swap in my hatch! wtb wtb!!!!!!!!!!!

 

p75 is what they are called and i also believe they are called p74 too

 

the LS ecu's are all p75 starting 1994. Everything below 1994 was pr4. Just a heads up but the 96-99 (obd2 version A) ecu's are different compared to the 2000-2001 (obd2 version B) ecu's (Immobilizers installed).

 

I have 2 ls ecus for sale get at me and we can get you one. Email me at s_christlieb33@yahoo.com

 

thanks everyone, any more info, i have a 00 si and i need an ecu with out the immobilizer!

 

well I still need a p75 that is obd 2 b with out the immobilizer, I think a 98 or a 99 yr model, can anybody help me out?