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Unread 05-02-2013, 07:16 PM   #1
max1010
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1989 YJ Wrangler 
 
Join Date: Sep 2009
Location: iowa
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'98 S10 Blazer TBI

Will the TBI from a '98 S10 Blazer work on my '89 4.2 or is it too new?

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Unread 05-02-2013, 07:37 PM   #2
NonRubicon
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1990 YJ Wrangler 
 
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If it's from a 4.3L then it'll probably work. I think it's primarily about the displacement being close enough to the 4.2L that you won't need to have the PROM reprogrammed. The computer will learn and adjust to the slight difference in displacement.
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Unread 05-02-2013, 08:05 PM   #3
max1010
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Thanks!
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Unread 05-03-2013, 03:31 AM   #4
SquidsYJ
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In 98 blazers did not have tbi, they were a form of cpi.
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Unread 05-03-2013, 07:11 AM   #5
max1010
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Will the cpi type injection not work then?
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Unread 05-03-2013, 09:10 AM   #6
SeanB95YJ
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it'll work... but it's best if you have the WHOLE Blazer to pull all necessary parts from.... engine, computer, harness, etc.... basically everything under the hood (and under the dash) that's directly related to that motor running. 96+ is OBD-II so there's more electronics than 95-, but it's still doable.

basically, you need to make the engine/computer "think" it's still in the blazer it came out of
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[FONT="Comic Sans MS"][COLOR="Blue"]Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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Unread 05-03-2013, 10:40 AM   #7
max1010
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Thanks for the help. I will pass on this one and look for an older one. I'm not looking to swap out motors.
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Unread 05-03-2013, 11:40 AM   #8
SeanB95YJ
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oh sorry... reading the thread title and the fact that's such a popular swap (tbi s10 blazer engine) I thought that's what you meant
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[FONT="Comic Sans MS"][COLOR="Blue"]Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
[/COLOR] [COLOR="Red"]swap/build thread: [url]http://www.jeepforum.com/forum/f22/after-almost-4-years-finally-my-own-build-swap-thread-1542284/[/url][/COLOR][/FONT]
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