1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

1FSTGTS's addition to his 4th Gen Family

Discussion in 'Your 4th Gen beauty' started by 1fstgts, Jul 29, 2020.

  1. 1fstgts

    1fstgts Well-Known Member Staff Member Administrator Moderator Donated!

    So I got bit by the Alltrac bug. After taking a multi-year hiatus from doing anything on my 89 GTS, I stumbled across an 88 Alltrac for sale not far from me. Took a trip and decided to pick it up. The pro's to it were it already had an ST205 engine and tranny installed in it plus BC Coilovers. The cons is that its pretty rusty and the previous owner started to turn it into a rally car by gutting the interior and installing a fuel cell. But I basically paid for the price of the swap motor for the whole car so it was worth it. Ive already been working on it for a few months but since now weve been able to clean up the forum, heres a thread to start on it. Sorry for having to link pictures to an external site. For some reason the forum isnt allowing uploads of pictures.

    Oh, yeah and the one picture is the Alltrac next to my baby...my completely rust free 89 GTS. Soon to get a 205 swap as well and be back on the road after being stored for 8+ years.

  2. 1fstgts

    1fstgts Well-Known Member Staff Member Administrator Moderator Donated!

    The first issue was figuring out all the crap wrong with the motor. It has multiple engine codes and I had to dig through them. Someone also had the PCV completely plumbed wrong and was pushing boost back into the crank case.(Idiots). Sadly, I didnt get many pictures. But I ripped out the AC(didnt work anyways), removed the Water to Air intercooler, relocated the battery, did a FMIC, installed a new radiator I had sitting for several years and several other things.

  3. 1fstgts

    1fstgts Well-Known Member Staff Member Administrator Moderator Donated!

    Did I mention the car was devoid of an interior? The only thing left in it was the dash and two front seats...Sigh.

    So I found this 88 GT to become the donor for the project. It was rough and had this nasty burgundy interior.

    Something of note if you didnt know, Alltracs are different from the shifter back. The center console, and hatch plastic is different to accommodate the rear subframe and rear diff.

    But I was able to do some cutting and modifying to get everything in so that at least the car resembled a normal 4th gen.

    And I thought the seats turned out decent with the red/black combo. The fabric paint seemed to work pretty well. It was my first time trying it on both plastics and fabrics.

  4. 1fstgts

    1fstgts Well-Known Member Staff Member Administrator Moderator Donated!

    Wiring and such in this car was a nightmare. The guy I bought it from said he was an "electrician" and cleaned up the wiring from the guy he bought it from.... yeah, about that.

    I had tons of butt spliced garbage to repair and straighten out both inside and under the hood. They also put in some half ass push-button start which I had to undo. Plus fans, fuel pump and a bunch of other stuff was all put on individual switches and that all had to be undone. What a mess. So when it came time to finally fire her back up, nothing....no spark. I spent days going through what I had fixed and pulling my hair out trying to get what was wrong. Finally after extensive troubleshooting with an oscilloscope, everything pointed to a bad ECU. So I pulled it apart to find that a bunch of the capacitors leaked and were no good. So after busting out the soldering iron and cleaning up the boards, VICTORY!
    She fired up.

    I was using one of my benchtop Tektronix scopes to do my troubleshooting but that just got cumbersome. I picked one of these up and it was well worth the money.


    I was just left with the dreaded ST205 code 54(not detecting the intercooler pump). Well even after doing the mods, I still cant get the code to stay off. So Im guessing Im going to end up needing a new ECU down the road. The boards were damaged extensively from the leaky caps. In the mean time the car runs somewhat rich.

    Also, I replaced the BS homemade boost controller with Greddy Profec B 2.
    pantonvich likes this.
  5. 1fstgts

    1fstgts Well-Known Member Staff Member Administrator Moderator Donated!

    I decided to borrow the wheels from my GTS since the tires were like new for tread but getting pretty old. And I hated the 7th gen wheels that came on the car anyways.

    I also took the opportunity to play around with backlighting the "Celica" part of the grill. I started working on the one on my 89 when I smoked the 3SGE(see Turbocharging saga thread) and never got back around to it.

    Turned out decent. I have some ideas for when I do the other one to do differently. But I like it. It definitely makes the car stand out at night.
    pantonvich likes this.

Share This Page