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

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: Check Engine Light. Trouble code P0141 appears but all sensors are new. Engine still stalls.

Hello. Depending on why the Check Engine Light is still coming on would determine if it is safe to drive it. If you are getting codes related to the oxygen sensors and the catalytic converter then you may have the...

Q: My windshield wipers won't turn off on my Cadillac CTS 2005.

The switch contacts are welded (stuck) shut OR the circuit is being powered due to a wiring fault or some sort of short. It is also possible that relay contacts in the wiper circuit are stuck on, regardless of switch...

Q: 91 ford bronco stuck in 4 wheel high

This Borg-Warner 13-56 transfercase features electronic shift control. To determine shift motor operation, the control module uses information from the 4x4 selector switch, shift position sensor, speed sensor and neutral safety switch.The problem could be with the electronic control portion...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...