Skip the auto shop - Our mechanics make house calls

Q: Can't find a ecu.

asked by on

I swapped a 94 302 for a 96 351 and I need a ecu. 96 ecu won't fit into my truck and the 96 engine's oe codes don't match my truck. Can I get any ecu and just reprogram it to my truck?

My car has 290000 miles.
My car has an automatic transmission.

A: You can use the engine but you are going to...

You can use the engine but you are going to have a hard time getting it to work since the two years are a generation apart when it comes to the computer systems. The 1994 was an OBD1 and the 1996 is an OBD2 system. The only way I see the two working is to swap all the 1994 harness and sensors to the 1996 motor and by using the 94 ECM. I still think you will have issues with the intake and some of these items. Seek out assistance from a willing mechanic, like one from YourMechanic, they may be able to help you work it out.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: car runs great when engine is cold but dies when engine is warm

This sounds like there is a problem with the MAF (mass airflow) sensor. When your vehicle is cold, the PCM (Powertrain Control Module) is in what is known as open loop. Open loop is a preprogrammed program put in place...

Q: Electrical problems with car

Hi there. On the right front wheel well, there are a series of fusible links which distribute battery power to all of the vehicle's electrical systems. One is gray and is labeled "fusible link K," which supplies power to all...

Q: Car starts but then stalls

Since this issue did not present itself until after the replacement of the ignition switch, it most likely was created during the installation or reassembly process. In order to replace the ignition switch, the steering column needs to be lowered....

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...