Question about Series 2 L67 swap - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-04-2004, 08:21 PM   #1
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Default Question about Series 2 L67 swap

Ive obtained quite a bit of information, one question I didnt answered though is. Was the 1996 Bonneville SSEi'* a combination of L67 Series II and 4T60E-HD? Someone Im talking to claims this, and if this is true it will make my work a HECK of a lot easier because I wont need to swap out PCM and engine harness
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Old 06-04-2004, 08:33 PM   #2
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Originally Posted by Spiral
Ive obtained quite a bit of information, one question I didnt answered though is. Was the 1996 Bonneville SSEi'* a combination of L67 Series II and 4T60E-HD? Someone Im talking to claims this, and if this is true it will make my work a HECK of a lot easier because I wont need to swap out PCM and engine harness
it'* true, but you'll still have to swap out the PCM and engine harness (how is a N/A programmed computer gonna handle boost?)
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Old 06-04-2004, 09:32 PM   #3
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Because my car is an SSEi and it has a supercharger, its just going to have a different one now... =)
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Old 06-04-2004, 09:49 PM   #4
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Because my car is an SSEi and it has a supercharger, its just going to have a different one now... =)
ok, then there'* the problem of the engines being entirely different, the only thing they have in common is the bore and stroke. a series 1 L67 computer will never run a series 2 L67. you also have to remember, the series 2 is OBD 2, while your series 1 is OBD 1, totally not compatiable, and lots of different sensors, your OBD 1 computer woln't know wtf it'* looking at if you try and hook them up
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Old 06-04-2004, 10:07 PM   #5
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Well, the guys from L67swap.com said the opposite, All the fiero guys use the series 1 harness and pcm I guess...
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Old 06-04-2004, 10:14 PM   #6
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Well, the guys from L67swap.com said the opposite, All the fiero guys use the series 1 harness and pcm I guess...
correct me if i'm wrong, but arn't they also using series 1 engines? anyway, i'm sure a gearhead will come in and explain it a bit better than i have
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Old 06-04-2004, 10:28 PM   #7
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I totally get what you are saying...
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