I just purchased an '88 Gen1 that already has a 3.0 3VZ engine installed in it from a '95. The PO said it never ran well after the swap due to electrical problems so he messed with the engine harness and now it's looks like spaghetti under the hood. I did notice that the engine harness and ECU are still the original ('88). I am planning to replace the engine harness and ECU with ones from a '95 but wanted to know if I can reuse the original '88 main cabin harness. Any help or guidance would be greatly appreciated. Thanks.
3VZ swap in '88 Gen1
- Thread starter BryanS
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Hyde802
New member
The 88 and 95 use different plugs for things. Depending on how it got spliced in I see where you may have issues. I would
Fuel injectors, knock sensor, and alternator all come to mind for having different plugs from 88 to 95. I think mid 92 was the switch over? I would check that you dont have 88 style injector in the 95 motor before you buy a 95 harness and have to change out plugs.
Fuel injectors, knock sensor, and alternator all come to mind for having different plugs from 88 to 95. I think mid 92 was the switch over? I would check that you dont have 88 style injector in the 95 motor before you buy a 95 harness and have to change out plugs.
You were spot on with everything. I purchased a '95 harness and everything was different so I ended up purchasing another '88 harness in perfect condition. I then had to swap out the fuel injectors, the knock sensor and the alternator to '88 components. I still have to swap out the oil pressure sending unit for an '88 but I think that's it. I'm hoping to turn the key in another week or two.
riginal ('88). I am planning to replace the engine harness and ECU with ones from a '95 but wanted to know if I can reuse the original '88 main cabin harness. auto clicker word unscrambler jumble solver Any help or guidance would be greatly appreciated. Thanks.
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Hyde802
New member
Once and a while I get one right. haha.
There are two types of oil sending units. One for the actual gauge on an sr5 truck, or one for just a dummy light like on base model trucks. Having the correct one is essential, or it could fry something IIRC.
