86 turbo toyota pickup project/problems
5 Attachment(s)
So I just picked up my new ride! I found an 86 turbo toyota xtra cab 4x4 truck. It was not exactly what I was looking for, cause it is an automatic, but that is about to change. I got it for 2200 dollars, which I thought was a really good deal for the shape it is in. The motor runs a little rough, but has a few obvious problems. First of all, the first thing I did was change the oil, which was super black and probably not changed in like 10k miles. Then, it runs super rough on idle, and I was trying to figure out what was causing it. It felt like an ignition problem, and to add to that, it is running quite rich, like 13mpg rich. I replaced the plugs, and it had new cap and wires when I bought it.
Then I started focusing my attention on the MAF. It is a wierd maf, and has a flapper in it. I found out that it is working correctly, so then I was stumped. I tested the O2 sensor with a volt meter, and it read a solid .052 at idle, meaning it is stuck on that reading, so I replaced that. still didn't fix the rich problem. I then found out that my rubber hose that goes from the MAF to the turbo has been nig-nogged up with tape, meaning it is probably cracked or something. That means unaccounted air is getting into the motor making it run lean, then when the O2 sensor sees the miscommunication between the O2 and maff, dumping in more fuel to counteract it being lean. Thats what I think at least. Injector may be stuck open or something, but I am going to replace the intake tube first and see if that fixes it. Also, my turbo is blown, it has bad shaftplay and I have a bunch of oil in the intake tube. It is a stock ct20 turbo, a tiny one at that. I would like to replace it, but have been looking into the fact of using a ct26 off a supra. I am not sure if they have the same flange, so i guess that is my question. Does anyone know if the ct26 turbo will bolt up to my manifold? also does anyone have any suggestions of cool upgrades to do to this truck? this is my first toyota, mainly work on hondas! Attachment 23952 Attachment 23953 Attachment 23954 Attachment 23955 Attachment 23956 |
Re: 86 turbo toyota pickup project/problems
swap to a t3, add an intercooler
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Re: 86 turbo toyota pickup project/problems
intercooler will definitely be going onto it. I bet that alone will make it run a ---- ton better.
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Re: 86 turbo toyota pickup project/problems
your cold start injector may be stuck on, from the fuel rail there is a 1/8" steel line that goes to a weird sort of injector on the intake , facing valve cover, right around the 'b' in turbo, unplug it, start back up. it's a mildly known issue, but they also make for cheap boost enrichments :). go to the parts store and get a new cap/rotor, looking new isn't new, and set the timing. cam could be off, if you can't pull a 10% grade at 55 without needing to downshift to 4th, you're underpowered. 13mpg is low, but not terribly out of toyota range, my 22r was carb'd, 31" bfg at's, running rich on a weber and i'd average high teens for mileage, flooring it really didnt make it much worse.
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Re: 86 turbo toyota pickup project/problems
also ive got spare taillight lenses, 30 shipped, those fuckers are hard to find, you'll find this out. you fucker, i just sold a 60/63 turbo. if you want a t3 log manifold plug and play for any 20/22r engine, 100 shipped :)
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Re: 86 turbo toyota pickup project/problems
ahhhh so these came turbo ?
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Re: 86 turbo toyota pickup project/problems
Originally Posted by bitchasscracker
ahhhh so these came turbo ?
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Re: 86 turbo toyota pickup project/problems
Originally Posted by c0mpl3x
your cold start injector may be stuck on, from the fuel rail there is a 1/8" steel line that goes to a weird sort of injector on the intake , facing valve cover, right around the 'b' in turbo, unplug it, start back up. it's a mildly known issue, but they also make for cheap boost enrichments :). go to the parts store and get a new cap/rotor, looking new isn't new, and set the timing. cam could be off, if you can't pull a 10% grade at 55 without needing to downshift to 4th, you're underpowered. 13mpg is low, but not terribly out of toyota range, my 22r was carb'd, 31" bfg at's, running rich on a weber and i'd average high teens for mileage, flooring it really didnt make it much worse.
Originally Posted by c0mpl3x
also ive got spare taillight lenses, 30 shipped, those fuckers are hard to find, you'll find this out. you fucker, i just sold a 60/63 turbo. if you want a t3 log manifold plug and play for any 20/22r engine, 100 shipped :)
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Re: 86 turbo toyota pickup project/problems
Originally Posted by daboosted93
ya, I saw that injector, and never thought about that being the problem. how would you recommend determining if that was the problem or not. I would just unplug it and see if that fixes it, but if it is stuck open, I would not be able to tell.
as for this...!!! I have actually been looking for a header flange to make a new manifold to accept a t3 or t3/t4 turbo. I have a garrett super 60 i need to get rebuilt that will be perfect size for that motor. my drivers tail light is broken as you can tell too, so I will probably be taking you up on both of those offers here really soon. |
Re: 86 turbo toyota pickup project/problems
Originally Posted by c0mpl3x
yup, what ------- rock were you living under?
a honda rock |
Re: 86 turbo toyota pickup project/problems
Originally Posted by c0mpl3x
120 shipped on both, ill throw in a t3 return flange in either stock flange, or aluminum -10an
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Re: 86 turbo toyota pickup project/problems
Originally Posted by bitchasscracker
a honda rock |
Re: 86 turbo toyota pickup project/problems
What kind of power are you looking to do?
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Re: 86 turbo toyota pickup project/problems
I also have been living under a rock. That truck is pimp, I'd drive that for sure. :y
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Re: 86 turbo toyota pickup project/problems
Originally Posted by BLAAST
What kind of power are you looking to do?
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Re: 86 turbo toyota pickup project/problems
The 22-RTE is a pretty stout engine, with a shitty turbo system (tiny inefficient turbo, no intercooler). I just wish they made more of the pickups and 4-Runners in Turbo trim.
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Re: 86 turbo toyota pickup project/problems
with a large cfm turbo, that motor will love you. keep airflow up and itll keep pulling
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Re: 86 turbo toyota pickup project/problems
Originally Posted by daboosted93
if I replace the turbo with a 60 trim t3 and up the boost to like 8-10, I should be hitting 200-210 whp. nothing too much, as it is my daily driver and the only tuning available is megasquirt or a stand-alone, no piggybacks.
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Re: 86 turbo toyota pickup project/problems
Originally Posted by E-b0la
The 22-RTE is a pretty stout engine, with a shitty turbo system (tiny inefficient turbo, no intercooler). I just wish they made more of the pickups and 4-Runners in Turbo trim.
daboosted93 The cold start injector is only 75-125cc'ish. While it could be stuck open, it would not cause that amount of terrible fuel consumption. Change the cap & rotor, Change the plugs (NGK or Denso copper plugs). Change all of your vagina split charge piping... AFA why your mileage is complete piss, I think you've got a stuck injector. Change them. Would *probably* be a good idea to go ahead & check your compression too... |
Re: 86 turbo toyota pickup project/problems
Well, I do want to replace the injectors, does anyone know what cc rating they are? I have looked around and can't find anything. As for the charge piping, it will be getting a front mount when I switch turbos.
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Re: 86 turbo toyota pickup project/problems
They should be pink, low imp, 295cc @ 36psi (318cc @ 41psi).
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Re: 86 turbo toyota pickup project/problems
ok, well if I can't find a cheap set of stock ones, I will probably get some rc's or something and use those with an adjustable FPR.
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