PCM fuse continually blows

Hi,

Yes, the plug itself has pins in it that can bend or become damaged and short. As far as the BCM, I don't think it should be hanging.

Let me know.
Joe

Good evening,

Did it have a code prior to you cleaning the mass air flow sensor?

First, you cannot clean that sensor, The part that gets carboned up has carbon baked on the end. There is no cleaner to remove baked on carbon.

https://www.2carpros.com/articles/engine-stalls

I would suspect either fuel pressure or a cat converter issue. It may be clogged not allowing it to go any faster than 65.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Roy

Circuit Description
When a pillar (Vortex generating body) is placed in the path of a uniform flow, vortices called Karman-Vortex are generated downstream of the object. Using this principle, a vortex generator is placed inside the volume air flow meter. By measuring the frequency of the vortices generated, the engine control module can determine the volume of air flowing through the volume air flow meter. The vortices are detected by their exerted pressure on thin metal foil (mirror) surfaces and a light emitting element and light receptor (LED and photo transistor) positioned opposite the mirror which senses the vibrations in the mirror optically. The engine control module uses these signals mainly for calculation of the basic injection volume and the basic ignition advance angle.

Yes. You could have an issue with the ECM. The three possible causes of this code and your issue are the sensor, wiring, or the ECM. I supplied all the testing for this code so if you run through this you will find the cause.

I would not just replace the ECM as this is the most likely cause after the sensor but that is expensive if it turns out to be a wiring issue. You can find that out with this testing.

Let me know if you have questions. Thanks

I would do basic diagnostics first before replacing parts that may not be bad.

You need around 60 pounds of fuel pressure for this engine.

Also, check the back pressure of the exhaust. You can get a back pressure gauge to test the back pressure. You remove the upstream O2 sensor and insert it. If you have more than 1.5 pounds, the cat is bad.

Do your basics first before replacing anything so you do not waste your money on unneeded parts.

Roy