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Yes and no. As long as the motor is the same, the harness should be the same.
Yes, it requires transmission, engine wiring harness and computer from donor car.
When making changes to a car it is important to have a diagram of the area. The wiring harness diagram to a Pontiac Grand Am can be found in its maintenance manual.
Pontiac 2400yes but wiring harness may need to be changed.
Wiring runs all over the vehicle.
You should never have to replace the wiring harness, and if you do get a professional to do it. Now if you are talking about the wiring harness for a after market head unit, then you just buy an adapter. AND ALWAYS DISCONNECT THE NEGATIVE BATTERY CABLE WHEN MESSING WITH YOUR CARS ELECTRICAL SYSTEM.
Short answer, no. A pontiac and GM engine are different. Long story, yes, with a lot of work. Wiring harness and ECU will have to be switched at the very least.
simply get a different wiring harness from the junk yard
It depends on the engine. If it is a 3.3 v6, you will locate it under the 3 ignition coils. Unbolt each coil, 2 screws per coil, and the unit will be free, other than the primary wiring harness. The primary wiring harness is connected by a bolt, through the connector and into the module.
Yes I just did it with mine. Wiring harness has different plugs for injectors so some harness switching is required.
it is on the back driver side of the engine on top where the engine and bellhousing connect you will see 3 wires coming off the wiring harness at the bellhousing they connect to the cranksensor
The wiring diagram for the radio harness of this car can be found in its maintenance manual. It can also be found in the repair manual or gotten as a print out from an auto part store.