Skip the auto shop - Our mechanics make house calls

Q: Doing an engine swap and plug doesn't match

asked by on

I am doing an engine swap on my 1996 Isuzu trooper. I am dropping in a 1998 Isuzu trooper engine and so far one plug isn't matching. I would like to know if there is a way to use an adapter of if I need to dead end and splice the wire. Removing the old harness will be nearly impossible as the old one has deteriorated too much.

My car has 177000 miles.
My car has an automatic transmission.

Hello. An adapter for this sort of task may be difficult to find, but would likely be the simplest way to make the necessary connections without modifying the harness. If one of these is not available then the next best option would be to cut and splice the necessary connectors. This would require verifying the wiring to make sure that the connector is correctly spliced. This is even more important if the connector in question is to a sensor, or if there is more than two wires going to it. If the harness is deteriorated, I would also take a moment to carefully examine the harness for any signs of possible damage or wear, as that could potentially cause issues with the engine swap as well.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Daytime running light out

The HID controller may be bad. HID lights actually need the controller to turn the 12 volt DC from your car battery into 3 phase high voltage ac power. If it is not working correctly, the lights will not work....

Q: My front end is making a popping noise

This is a common sign of a failing CV joint. A CV (Constant Velocity) joint is a shaft that connects the transmission to the wheels, essentially transferring the power from the drive train directly to the wheels. The CV joint...

Q: Swapping engines.

If you are going to try and replace the engine with the turbo engine for this car you are going to have more than a few modifications to do. The main one is the wire harnesses will b different. The...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...