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 ECM for 3.4 swap
#845852
11/07/07 04:36 PM
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Joined: Sep 2006
Posts: 43
OP
Getting the Wheeling Fever
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I've had some problems with my idle in my 3.4 swap and I havn't gotten to all the things I've been told to do and check yet but I I've been thinking about changing ECM's and I thought I better start looking now. Is it the ECM out of 91 and 92 3.1 Rodeo's that I need and are they a direct swap, do I need to do anything else? And does anyone know where I can get a remaned one reasonable or know anyone with a good used one?
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Re: ECM for 3.4 swap
[Re: BillW]
#845853
11/07/07 04:57 PM
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Joined: Aug 2002
Posts: 3,007
Roll Me Over
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The one that came with the 2.8 in your trooper should run it just fine. It'll learn what it needs to know. Richard <img src="/forums/images/graemlins/patriot.gif" alt="" />
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Re: ECM for 3.4 swap
[Re: BillW]
#845854
11/07/07 08:22 PM
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Joined: Oct 2000
Posts: 394
Mudrunner
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Did you put on a 4.3 TBI with the swap? MY old TBI from the 2.8 wouldn't run the 3.4
It only got better when I put the TBI from the 4.3 on.
After that, check the vacuum hoses and such.
Shouldn't need another ECM
'91 Trooper 3.4 V6, K&N, 33x12.5 Trxus MT's, Aisin hubs, 3" body lift, Rear ARB Naches Trail
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Re: ECM for 3.4 swap
[Re: Storm Trooper]
#845855
11/11/07 05:53 PM
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Joined: Dec 2002
Posts: 92
Getting the Wheeling Fever
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looks like he did swap in the 4.3TB from this thread: http://www.4x4wire.com/forums/showf...mp;amp;sb=5&o=14&fpart=1you should not need a different ECM. but, if you want to try an ECM from a 3.1L, i do have a spare you are welcome to. just shoot me a pm or email. but again, it shouldn't be necessary. Did you put on a 4.3 TBI with the swap? MY old TBI from the 2.8 wouldn't run the 3.4
It only got better when I put the TBI from the 4.3 on.
After that, check the vacuum hoses and such.
Shouldn't need another ECM
1992 Isuzu Rodeo 3.1L(now 3.4L) V6 4x4
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