How To: Swap a 20v by System

4. Throttle cable

My preferred method for dealing with the 16v cable being too short for the 20v is to simply reroute it. I drill a second hole in the fire wall about 6inches to the passenger side of the original throttle cable hole (be careful not to hit anything under the dash when you do this). I then route the cable under the dash, under the center console, behind the rear firewall and out the trunk release cable hole in the rear firewall (if you want to keep your trunk release, a second hole can be drilled). This puts the throttle cable in the perfect position with more than enough length.

This documentation in no way replaces the Toyota MR2 Repair Manuals. The purpose of this content is only to provide supplementary information to fellow MR2 enthusiasts. Midship Runabout and its contributing authors will not be held responsible for any injury or damages that may occur as the result of practicing any of the methods or procedures described within this website. Article and photo submissions are property of the contributing author.


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9 Responses

  1. Jason McDaniel says:

    Can I get contact info to buy a harness?

  2. Jimmy Lam says:

    Got a 1993 Corolla dx station wagen stick shift, would like to swap from 7afe (stock engine) to 4age 20v BT, need some tech advise and would buy a plug and play harness from you, pls contact me via the above email, much appreciate your post and have a great day.

  3. Troy says:

    Hey, I’m planning to do this swap over the summer, how do I get one of these ‘plug and play’ harnesses?

  4. Daniel says:

    I am also interested in a harness, could you please get in contact with me if its still an option. I have a mk1 mr2 with the swap already done, but it was done poorly and the harness is hacked….

  5. yerv says:

    hello there,
    I would also like to purchase one of these harnesses. Please get back to me as this wiring stuff was the only thing holding me back fromfrom finally tackling the swap

  6. Addison says:

    Hi,

    Thank you so much for your post it is very helpful! Can I buy a plug and play harness from you? I am planning on doing a silvertop swap with my aw11 soon. Thank you!

  7. daniel says:

    yet another request for a harness……is it still something you can do? can you source the original harnesses as well? thank you for your time.

  8. Michael says:

    good day,. i have a ee100 with 2E engine swapped with 4age BT,. what do i need to have my exhause pipe fixed, pls comment on sensors needed to be added and/or installed pipe sizes, for proper functionality of the engine

  9. mr220v says:

    Looks like this old writeup of mine travels far. Originally did it on mr2.com 6 years ago maybe.

    PNP harnesses can be ordered at http://www.wiregapinc.com

    I swap the 20v among other things.