Recent content by Lennyobs
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98 l29 454 mystery
I’m guessing that injector wiring for 96 vs 98 is a bit different for inj1 and inj8- Lennyobs
- Post #14
- Forum: 96+ Vortec Performance + Computer Swaps
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98 l29 454 mystery
Before I began the 0411 swap I plugged in The original 350 96 computer and the motor idled high but misfire completely dissapeared and motor ran perfect so I unplugged and did 411 swap waiting to get the computer back from local guy programming with base file- Lennyobs
- Post #13
- Forum: 96+ Vortec Performance + Computer Swaps
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98 l29 454 mystery
Got the spread from lextech I’m gonna go ahead and 0411 the truck and get local race shop to throw a file on it- Lennyobs
- Post #9
- Forum: 96+ Vortec Performance + Computer Swaps
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98 l29 454 mystery
These are the harnesses- Lennyobs
- Post #8
- Forum: 96+ Vortec Performance + Computer Swaps
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98 l29 454 mystery
Checked out injector wiring everything looks right both ground all injector wires have signal. Something tells me it might be the ecm which is a 98 & the truck is a 96 tried to find 96 sheet on the link you sent but couldn’t find to compare between 98 & 96 ecm plugs- Lennyobs
- Post #7
- Forum: 96+ Vortec Performance + Computer Swaps
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98 l29 454 mystery
thanks bud! I’ll keep updating as I go- Lennyobs
- Post #5
- Forum: 96+ Vortec Performance + Computer Swaps
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98 l29 454 mystery
Yes timing light shows spark not sure if they are batch style firing i soldered all corresponding wires color matched to the l29 injector harness and used 1 pink ground like I saw in multiple write ups that used the 350 harness the motor itself guy who sold it to me said the rv “Had” 55,000...- Lennyobs
- Post #3
- Forum: 96+ Vortec Performance + Computer Swaps
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98 l29 454 mystery
Finally swapped in the l29 got the motor running and driving idles by itself but motor has a heavy misfire. Truck is a 96 harness 96 from the old 5.7 modified for the l29 ecm is 98 with the 4l80 repinning runs thru all gears fine, when I pull out plug wire #1 & #8 no change in idle or revved...- Lennyobs
- Thread
- Replies: 17
- Forum: 96+ Vortec Performance + Computer Swaps
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96 C1500 4l80e wiring
Hello my fellow gmt400 brothers I finally got the truck running and started, after a long 6 months.i swapped an l29 454 out on an RV with a 4l80e behind it, I’m using the stock 96 harness which I only modified on the engine side and also using the computer that belonged to engine and trans in...- Lennyobs
- Thread
- Replies: 0
- Forum: Transmissions
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Lookinf for 4l80e swap information
Just checked vin on the truck it’s a 96 is there a write up on what to do to the 4l80 or is it the same as the one on lt1swap- Lennyobs
- Post #14
- Forum: Transmissions
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Lookinf for 4l80e swap information
I don’t have anything from the donor just computer and the ratio is not the same :(- Lennyobs
- Post #12
- Forum: Transmissions
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Lookinf for 4l80e swap information
‘great info thanks! I’m doing something similar if I have the original computer that ran the 4l80 do I still need to reflash or modify pic?- Lennyobs
- Post #10
- Forum: Transmissions
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95 C1500 4l80e Wiring
Hello my fellow gmt400 brothers I finally got the truck running and started, after a long 6 months.i swapped an l29 454 out on an RV with a 4l80e behind it, I’m using the stock 95 harness which I only modified on the engine side and also using the computer that belonged to engine and trans in...- Lennyobs
- Thread
- Replies: 1
- Forum: Transmissions
