Two keys deepen Samcrac's half-running Aston Martin mystery
Swapping engine computers produces a key error, while viewers focus on whether the DBS's electronics recognize the same key.
Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.
Someone Tampered With My $100,000 Aston Martin DBS
Things we can learn from the video
Press to jump
- 2:30Disconnecting injector connectors confirms that one engine bank isn't running.
- 6:36After the engine computers are swapped, starting requires the second key, but the same bank remains inactive.
- 9:16Injector wiring has voltage, but testing finds no pulse signal on the inactive bank.
- 10:18A broken wire appears behind the back seat; swapping fuel pump driver modules doesn't move the fault.
- 15:28Sam explains that his diagnostic-system setup failed during an attempted module reflash.
- 19:05Both engine computers are headed to UpFix for testing and possible internal repair.
Switching engine computers should help Sam narrow down the fault. Instead, his auction-bought Aston Martin DBS refuses to start until he picks up the other key. Once it fires, the same half of the V12 remains out of action.
That is the particularly puzzling turn in Samcrac's only new upload, "Someone Tampered With My $100,000 Aston Martin DBS," which has drawn roughly 453,000 views. Following the earlier borescope investigation, Sam moves from looking inside the engine to tracing the signals that make it run. A thermal camera confirms the uneven heating; electrical testing finds voltage at the injectors, but no firing pulse on the dead bank.
Sam points to previous repairs and wiring work as reasons for suspicion, but the diagnosis remains open. Swapping fuel pump driver modules doesn't move the fault either. The video includes a sponsored Whatnot segment, separate from the troubleshooting.
In the comments, several viewers concentrate on the immobilizer, the security system that authorizes the engine to start. Their theory is that the two computers aren't properly paired with the same key. It's a proposed explanation, not a confirmed fix, and that odd key-fob switch gives them something specific to work with.
Across the channel, the week brought about 640,000 views and an unchanged subscriber count. Daily viewing is below its usual level. Gas Monkey Garage and LegitStreetCars are having busier-than-usual days, while Hoovies Garage is also running below its normal daily audience.
The new DBS episode carries the most momentum, followed by the earlier V12 inspection; the Porsche-and-eBike Short remains active too. Sam's next concrete step is sending both engine computers to UpFix for testing, after an attempted diagnostic-system reflash failed.
Published on Trari
Where next?
What viewers say
I love this kind of project. You are not dumping a lot of money into it, but a lot of brain power. I loved auto work for the diagnosis part, taking the symptoms and pointing to the bad part.
@johnelectric933See it on YouTubeSeems like an immobilizer issue to me. If the second ECU doesn't accept the current key it won't run.
Both ECU's need to accept the same key@dennis1143See it on YouTube7:30 its like a hellcat key, except it decides which side of the engine you want to run
@goode.110See it on YouTube
2 more comments
Sounds like the ECUs are not a matched pair and that each of the keys are paired with a different ECU
@evanellyfantSee it on YouTubehi i just want to say i don't have much of a clue about the cars you deal with but i do enjoy your videos and do gain some knowledge from them . keep up the good work
@raybokor2See it on YouTube
Public comments from the video's page on YouTube
The videos drawing views on Samcrac right now
- Channel
- Samcrac
- Subscribers
- 1,660,000
- Channel views, last 7 days
- 639,784
- Videos published this week
- 1
- Video published
- October 18, 2026
- Video views so far
- 453,190
- Views on its first day
- 386,326
The numbers
Here is how Samcrac's week looks in views and subscribers.
💡 Test your knowledge
Which tool does Sam use to check which engine bank is heating up?
The thermal camera confirms that only one bank heats up after the engine computers are swapped.




