Help wanted

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Thread Starter


Joined Feb 19, 2015
I'm looking to clip a 5v reference signal. Let me better explain my problem. I have a turbo diesel engine and I want to keep the PCM from seeing true boost pressure. The ideal circuit to wire in line of the signal would be adjustable and work as a voltage low pass filter.
For example
Signal range is .65 -4.65 volts. I only want .65- 3 volts. Is this possible?


Joined Jan 15, 2015
Unfortunately this forum has rules about automotive alterations and hacks. Discussions like this violate the terms of service as set by the forum owners. I would suggest you try another forum like this one which might be of some help.



Joined Oct 2, 2009
The owners of All About Circuits have elected not to allow discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

6.Restricted topics.The following topics are regularly raised, are considered “off-topic” at all times and will result in your thread being closed without question:
• Any kind of over-unity devices and systems
Automotive modifications
• Devices designed to electrocute or shock another person
• LEDs to mains
• Phone jammers
• Rail guns and high-energy projectile devices
• Transformer-less power supplies
This can be found in our Terms of Service (ToS)

Here is a site that may provide you with some assistance: Electro Tech Online

Good luck
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