so from my understanding 98 to 99 ecu swapping..... - Maintenance and Repair Forum

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so from my understanding 98 to 99 ecu swapping.....
Thursday, July 14, 2011 8:36 AM
seems there is great debate for some reason ( not sure why), but wouldnt it be pretty easy to just grab a 99 ecu slap her in, the remove egr, and just change the injector wiring? and install 2 wire knock sensor? sorry I have been reading up on it as my 99 is going to stay off the road as they deemed it non-road legal(stupid canada lol), and I am going to be buying a 98 Z24 un bastardized, in which I should be able to use my 99 cluster as well I believe, but I don't want to lose my tune OR retune my 98 ecm, as GM dealerships are crooks, they will not touch ecu unless its replacing with same one, so I don't want to get stuck with a cell, figured I can get the 98 to run my engine I should be fine, but injectors, I aready put money into them, so would like to retain them, I have a whole 99 parts car, but dont want to pull out ALL the wiring if I don't have to

"As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride." -Amen

Re: so from my understanding 98 to 99 ecu swapping.....
Thursday, July 14, 2011 12:15 PM
it seems like a lot of work, why was your car deemed not road legal? was it the tune?
Re: so from my understanding 98 to 99 ecu swapping.....
Thursday, July 14, 2011 1:21 PM
There are a lot of slight differences now that I "just" redid an entire 99 auto z engine harness. It isn't completely like the 98.

I would start the swap over. Honestly you going to fine a few. What the hells, but it should workout fine in the end.

if you have HPTuners you can tune off any check engine lights, and remove everything about the EGR system.




PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
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