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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Tue Apr 29, 2014 8:21 am 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 352
Location: Bay Area, California
Your car's ECU is a neural net processor, a learning computah.

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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Tue Apr 29, 2014 11:33 am 
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Joined: Mon Jan 10, 2011 1:00 pm
Posts: 241
Location: Sisterdale, Texas
Cool MarkII, axle code says G series, sweet...

Have you checked the distributor timing and TPS adjustment?

Where are you in TX?

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1977 Celica coupe
1977 280z - wife's car
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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Tue Apr 29, 2014 8:33 pm 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 104
Location: texas
jzcelica wrote:
Cool MarkII, axle code says G series, sweet...

Have you checked the distributor timing and TPS adjustment?

Where are you in TX?



Thanks JZCelica,

timing checked and adjusted....response got better.

TPS inspected anf found to be the the factory set pesition but voltage output not verified.

I really believe the MAF needs some attention so that my next move

Im located in the Austin area....DelValle to be exact,


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Fri May 02, 2014 5:47 am 
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Joined: Mon Jan 10, 2011 1:00 pm
Posts: 241
Location: Sisterdale, Texas
Is it a flapper door or hot wire style?

The flapper door style can be adjusted. You have to pop open the black plastic cover, and inside it has a sawblade looking wheel that you can turn either direction a notch or two. I can't remember which way is lean and rich though. I bet you can look up some threads online about adjusting 7M AFMs.

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1977 Celica coupe
1977 280z - wife's car
1989 Cressida


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Fri May 02, 2014 5:48 am 
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Joined: Mon Jan 10, 2011 1:00 pm
Posts: 241
Location: Sisterdale, Texas
If it looks like someone has been into it and adjusted it in the past, it may be way off.

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1977 Celica coupe
1977 280z - wife's car
1989 Cressida


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Fri May 02, 2014 5:53 am 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 104
Location: texas
JZcelica...thanks for the advice!!
its a flapper door type sensor, i have been playing with the idea of removing the cover and messing with it...i think ill try that this weekend and post the results.


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Sat May 03, 2014 10:29 am 
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Joined: Mon Jan 10, 2011 1:00 pm
Posts: 241
Location: Sisterdale, Texas
If youre going to adjust the AFM, be sure and do it with a voltage meter, so you can set it to the correct output voltage to the ECU. It's probably 0 - 5v variable.

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1977 Celica coupe
1977 280z - wife's car
1989 Cressida


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Mon May 05, 2014 7:44 am 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 104
Location: texas
jzcelica wrote:
If youre going to adjust the AFM, be sure and do it with a voltage meter, so you can set it to the correct output voltage to the ECU. It's probably 0 - 5v variable.


Got it!. thanks.


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Fri May 30, 2014 7:23 am 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 104
Location: texas
opportunity is knocking again....so i am listing the Mark II for sale in the hope that i can take advantage of the opportunity...Please PM or call/text me (512-767-0644) if anyone has interest in the car.


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Fri May 30, 2014 10:05 am 
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Joined: Wed Mar 21, 2007 11:47 am
Posts: 449
Location: Pac NW
10psitx wrote:
Where im at so far


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ill-minded wrote:
The wheels are SSR Longchamp XR-4Z, by the way. :)

The build plate should state whether it has an 8" (G series) diff as well. It's located next to the gearbox code usually.


seems like you have a G final drive...

I've done EXTENSIVE port work on 4AGEs (very similar to 1GG)... if you come across a spare head I'll be happy to make it flow better

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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Fri May 30, 2014 11:19 am 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 104
Location: texas
oldeskewltoy wrote:
10psitx wrote:
Where im at so far


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ill-minded wrote:
The wheels are SSR Longchamp XR-4Z, by the way. :)

The build plate should state whether it has an 8" (G series) diff as well. It's located next to the gearbox code usually.


seems like you have a G final drive...

I've done EXTENSIVE port work on 4AGEs (very similar to 1GG)... if you come across a spare head I'll be happy to make it flow better



Thanks man...its Very tempting, but i'm trying to sell it.


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Tue Jul 01, 2014 9:15 am 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 104
Location: texas
The radiator had a leak on the top tank so i ordered one for a Cressida...i havent installed it yet hope fully this weekend. I haven't worked the car in a few months....i start it drive it to the end of my street and back, so this weekend its getting some love!!


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 Post subject: Re: Toyota Mark II twin Turbo
PostPosted: Wed Jul 16, 2014 9:48 am 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 104
Location: texas
The A/C in the house needed to be serviced so i took some time off from work to meet the A/C tech today, while waiting i decided to change the Radiator, well took me all of 15 mins to pull everything but after seeing the condition of the rad hoses i thought it best to replace them as well....so i will order some silicone ones. I removed the MAF a few days ago to send to Cali for service so the "rubber" intake tube was in the way of the lower rad hose, i sorta twisted it to gain some space and it broke right where the clamp is on the turbo intake pipe, i need to replace that as well.... Some pics....

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Broken Intake tube

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