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Old 12-05-2005, 10:17 PM   #1
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Default L67 Computer

Will i need to change computers if i swap from a stock 1988 SSE motor to the L67. if so, what do i have to do to get everything running.
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Old 12-05-2005, 10:22 PM   #2
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Yep. In the definate column you have engine, trans, harness, and computer. In the probably column you have fuel pump, fuel lines (unless you make custom lines) and subframe (unless you want to make your own motor mounts).
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Old 12-05-2005, 11:23 PM   #3
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Fuel pump is an absolute.
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Old 12-06-2005, 12:34 PM   #4
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I talked to a dealership today and they said that i wouldnt have to change the computer. this sounds a little absurd. so is this dealership just a bunch of idiots.
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Old 12-06-2005, 02:16 PM   #5
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Quote:
Originally Posted by chefkid256
I talked to a dealership today and they said that i wouldnt have to change the computer. this sounds a little absurd. so is this dealership just a bunch of idiots.
Pretty much Possibly they were just brushing you off?

What I'm seeing is that you currently have the OBD1 computer. I may be wrong (and probably are) but all L67 3.8 SC engines are series 2 engines (OBD2). You might as well think of it as your trying to put that engine in a Model T, youll need the same parts & pieces. Dont feel bad. I bought a clean 92 Grand Prix with the intention of swapping a L67 into it. That put me in the same "OBD" boat your in!
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Old 12-06-2005, 03:22 PM   #6
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Can we post only one thread to answer the 88 to newer L67 swap questions?

Serach on Frankenbonne This should give you more information than you can handle at first. It'* the entire story of Randmans 90 SSE LN3 becoming one mean Supercharged 97 L67
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Old 12-12-2005, 06:27 PM   #7
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Fuel lines wont hold up?
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Old 12-12-2005, 06:37 PM   #8
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Quote:
Originally Posted by 2x4
Quote:
Originally Posted by chefkid256
I talked to a dealership today and they said that i wouldnt have to change the computer. this sounds a little absurd. so is this dealership just a bunch of idiots.
Pretty much Possibly they were just brushing you off?

What I'm seeing is that you currently have the OBD1 computer. I may be wrong (and probably are) but all L67 3.8 SC engines are series 2 engines (OBD2). You might as well think of it as your trying to put that engine in a Model T, youll need the same parts & pieces. Dont feel bad. I bought a clean 92 Grand Prix with the intention of swapping a L67 into it. That put me in the same "OBD" boat your in!
Just some clarifications, His computer might be pre-OBD1. Second, the L67 Started in 91/92 as the Series 1, then in 96 became the Series 2 L67.

Yes, Randman1'* posts would be good ones to read through. There is a lot involved, but it can be done if you have your mind set on it.
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Old 12-12-2005, 07:17 PM   #9
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Quote:
Originally Posted by KEOTOK
Fuel lines wont hold up?
It was much easier to remove my half rotted steel lines and replace them with the nylon/steel ones from the 97 donor car. Otherwise, there would have been at least two additional splices in order to adapt the stock lines to the appropriate quick disconnect. Too many connections for my liking. Since the fuel pump needed to be changed as well, I simply used the whole fuel system including tank, pump, sending unit and lines. All bolt-in parts and an additional bit of work to secure the lines as they now travel down the passenger'* side rather than the driver'* side.

One important note: In 97, the fuel sending units have a different operating resistance for the fuel gauge. Rather than 0 ohms empty and 90 ohms full, the 97 sender uses 40 ohms empty and 250 ohms full. Make sure to plan a sender change if using a 97+. I still have the 97 sender in the car and allowed me to run out of gas during NEBF I have a new one for a 94 just waiting to go in.
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