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4L80E CAN Tranmission Controller by AMP EFI
4L80E CAN Tranmission Controller by AMP EFI
MicroSquirt Transmission Controller
MicroSquirt Transmission Controller pinout
GM transmission connector 4L60E 4L60
MicroSquirt CAN Transmission Controller with 4L80E Subharness
4L60E 4L60 transmission controller serial connection
4L60E 4L60 transmission output speed sensor connection
MicroSquirt CAN Transmission Controller with 4L80E Subharness
4L80E Output Speed Sensor Connector Wire Harness

MicroSquirt CAN Transmission Controller with 4L80E Subharness

(7 questions)
5 out of 5 based on 2 customer ratings
(2 customer reviews)

$499.99

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Description

4L80E Plug and Play Transmission Control via MicroSquirt

Seamlessly control your 4L80E transmission with MicroSquirt Transmission Control! The supplied 4L80E subharness provides a simple, plug and play integration with MS3Pro and directly mates with our LSx drop on harnesses; a perfect fit for GM 4L80E transmission. Includes wiring for the input shaft speed sensor.  This can be used as a standalone transmission control solution with minimal wiring involved, but was designed to be a full plug and play, zero wiring solution with our 24x & 58x harnesses.

Note that many 1993 and earlier 4L80E transmissions had a different connector – this unit uses the later style that was used in most 1994 and later transmissions.

Parts included

  • MicroSquirt Transmission Controller
  • Complete 4L80E wiring harness
  • 6 pin black connector for power, ground, and CAN bus
  • 8 pin gray connector for additional inputs
  • 18 crimp pins for the above connectors

See our TCU quick start guide for what you will need to set this up.

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2 reviews for MicroSquirt CAN Transmission Controller with 4L80E Subharness

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MicroSquirt Transmission Control Manual

MicroSquirt TCU quick start guide

DOWNLOAD MicroSquirt Transmission Control Firmware

I’ve heard of a device called the MicroTCU. Is this a MicroTCU?

  • The MicroTCU is a different unit that has similar specifications, but it has not been put into production.

Is it waterproof?

  • No, but you can make it waterproof with a bit of RTV silicone around the edge of the case.

Are there other versions of the MicroSquirt for other functions? Transmission control or the “IO Box”, for example?

  • These all use the same ECU, just running different code to change its function and use it as a transmission control unit or I/O expansion device. See MSExtra.com for details.

Could I use two MicroSquirts, one running the engine and one running the transmission?

  • Yes. They would link up over their CAN networks to look like a single unit to the tuning software.

Where is this unit made?

  • They are built in the USA.

What do I need to tune this unit over USB?

Questions & Answers

    Can tach output on GM HEI be used for rpm input?
  1. 0 votes
    Q Can tach output on GM HEI be used for rpm input?
    Asked by Luke
    A

    A 4 pin HEI module tach output is off the negative terminal of the coil, so the voltage is too high for the input on the MicroSquirt. You can, however, swap to a 7 or 8 pin HEI, and use the "R" pin for a tach signal for the MicroSquirt. Leave the "E" and "B" pins disconnected, and it will behave as if it's a 4 pin module with a low voltage tach output.
    2. Can I use this controller for a different transmission, as long as I have TPS, rpm, tcc, shift solenoids........ And can I use flappy paddles shifts with this controller
  2. 0 votes
    Q Can I use this controller for a different transmission, as long as I have TPS, rpm, tcc, shift so...... Read more
    Asked by Caleb
    A

    You might be better off using a standard MicroSquirt as the harness won't be much use for non-GM transmissions. Supported transmissions include:

    • GM 4T40E
    • GM 4L60E
    • GM 4L80E
    • Toyota A341E
    • Ford 4R70W
    • Ford 4R100W (also called E4OD)
    • Mitsubishi W4A33

    The following have a few experimental installations but do not have full documentation:

    • GM 5L40E
    • Chrysler 41TE
    3. 4L80E- 2004 No Engine ECU. Are Coolant Temp Sensor and RPM Inputs critical? Can we Tune around an absence of either or both these Inputs? Thanks
  3. 0 votes
    Q 4L80E- 2004 No Engine ECU. Are Coolant Temp Sensor and RPM Inputs critical? Can we Tune around an...... Read more
    Asked by Paul
    A

    It does need RPM, but coolant temperature is less critical. The RPM input is a simple pulsed signal; there's several ways you can get this depending on your ignition system.
    4. I think my 4l80e trans is out of a 04 or 05 Chevy van is there a harness for that
  4. 0 votes
    Q I think my 4l80e trans is out of a 04 or 05 Chevy van is there a harness for that
    Asked by Daniel jones
    A

    Yes. This harness fits all but a few very early '90s versions of the 4L80E. We actually developed it using a transmission out of a slightly newer van.
    5. What should a person use for the rpm input on a carb engine with a distributor?
  5. 0 votes
    Q What should a person use for the rpm input on a carb engine with a distributor?
    Asked by Braedon Tersteeg
    A

    The MicroSquirt is set up to use its VR2 input for the RPM signal. You can often get a suitable signal from the distributor pickup or, if using an MSD type ignition, a tach output on the ignition module.
    6. can a map sensor input be used with boosted engines?
  6. 0 votes
    Q can a map sensor input be used with boosted engines?
    Asked by josh petermann
    A

    Sure - this one can use either throttle position or MAP for engine load.
    7. Do you need a tps for carbureted engines?
  7. 0 votes
    Q Do you need a tps for carbureted engines?
    Asked by Elvis
    A

    You can use either a TPS or a MAP sensor for engine load.
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