P0300 caused by EMP (electromagnetic pulse) ???

[ShadowsPapa]

Simple enough theory to test, being your code reader, drive by facility, if code appears, drive par a few miles, clear code, drive by facility again, if it re appears, do it a few more times. If it’s consistent, now you have a more solid theory to work from.

And how to explain to the police when they pull him over and ask if he's casing the joint, why he keeps driving back and forth..........

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[ShadowsPapa]

? You know...this could actually be one of the few times that it can be taken almost literally if the "box" being referred to is actually the truck. And this EMI producing medical facility is definitely outside of that "box." ?

Find a store that has foil in sale, wrap the truck in foil. It might help with radar traps, too.

 

[JTRDistraction]

Find a store that has foil in sale, wrap the truck in foil. It might help with radar traps, too.

He's going to need radar just to drive with all that foil on the windshield, but it should work as a Faraday cage to disrupt that interference. I like the way you think! ?

I am definitely curious to see if it is repeatable. Although it is most likely just happenstance.

 

[Rusty PW]

Instead of an EMP or EMI. It might be RFI.

 

[ShadowsPapa]

Instead of an EMP or EMI. It might be RFI.

.....or FBI or CIA or IRS.......

 

[Cburd61]

No matter how smart, or how much experience one may have, nobody can think of everything. We had an ‘05 Dodge Magnum RT back in the day. No matter if it was my wife, or me, driving the car, there was one spot on a certain highway it would just shut down. It was always as we passed in front of an electronics plant. We had it at the dealer about 7 times to have it diagnosed, but they couldn’t replicate the issue. It also had no codes displayed or stored. I gave the service manager permission to drive it down the same stretch of highway, and it did it to him, in the same exact spot. He ended up having it towed back to the shop. They ended up getting with a Chrysler engineer, on the phone, to try to figure it out. They ended up swapping the coil banks to opposite sides, and it never did it again. Craziest thing I’ve ever experienced with a vehicle.

 

[Rusty PW]

.....or FBI or CIA or IRS.......

You should know what it is. Bet you have dealt with it. Radio Frequency Interference.

Had a guy install a CB radio in his Chevy truck. Everytime he keyed the mike. The truck would shut off. Found out that he ran the coax cable next to the ecu under the kick panel. Moved the cable to another location. No more problems.

Had a couple cars that wouldn't start after having a some options installed. Found out that the guy do the wiring was using an old soldering gun. Everytime he was close to the ecu. It would fry. The service manager wanted to kill the guy. LOL I got the soldering gun it my garage.

 

[ShadowsPapa]

You should know what it is. Bet you have dealt with it. Radio Frequency Interference.

You bet - in the PCs I designed, the monitor systems I spec'd (touch screens - in the 1990s), and just in general as we manufactured and sold high-end control systems for power plants (synchronize generators coming online), turbo compressor controllers, etc.
I got involved with the RFI end of things because when selling and shipping to the EU, things MUST be up to snuff. It's worse than the USA in such regulations.

Best to have things disconnected or protected when soldering - you never know when there's a fault with the iron or gun.

Here's one for you - in about 1972 AMC came out with a TSB advising that the 72 model year forward would have capacitors mounted on the alternator housing with the lead on the output stud of the alternator.
Everyone thought - oh, AM radio interference!
No, to protect the alternator.
AMC was seeing dozens of alternators replaced on their cars under warranty. They did a study to find out under what circumstances this was happening. It generally only happened after a car was serviced or tuned up.
The shops were using battery powered timing lights and were yanking the leads of the timing light off the battery when the car was running and it caused a spike fry the diodes.

 

[Hootbro]

Bad or marginal grounds allow RFI, so it is not too far fetched of a theory of certain locations being more noisy. Stuff like this actually falls under the purview of the FCC to audit and regulate.

 

[ShadowsPapa]

Bad or marginal grounds allow RFI, so it is not too far fetched of a theory of certain locations being more noisy. Stuff like this actually falls under the purview of the FCC to audit and regulate.

These days you can drive around with a tablet or laptop and look for signals that shouldn't be there.

 

[j.o.y.ride]

There is no box, thus there can't be thinking outside of the box. Psychology experts have been picking that lame saying apart for a long time.
You think creatively, you be inventive, but never call it thinking outside of a box that never existed to begin with.

I was promoted over and over, and asked to join groups because I was a troubleshooter and creative thinker - but there's no bloody box.
My father received multiple awards for cutting costs for the company he worked for - it's simply being creative and not accepting status quo. There was never any box he had to think outside of.
It's a phrase favored by management, but in psychology, makes no sense.

Your dad sounds like he was a true outside the box thinker

 

[ShadowsPapa]

Your dad sounds like he was a true outside the box thinker

HAHAHA - it's amazing the hallucinations people see - boxes where there are none.
His thinking was the result of having been raised poor, no money to spare. So any time things could be done cheaper, faster, more easily or differently, he spoke up.

 

[j.o.y.ride]

HAHAHA - it's amazing the hallucinations people see - boxes where there are none.
His thinking was the result of having been raised poor, no money to spare. So any time things could be done cheaper, faster, more easily or differently, he spoke up.

He sounds like he was outside the box because he didn't even know the box. Meta.

 

[ShadowsPapa]

He sounds like he was outside the box because he didn't even know the box. Meta.

UNCLE

 

[j.o.y.ride]

UNCLE

Your dad was also your uncle?

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