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09-08-2011, 09:04 PM
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#1 |
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Stock
Join Date: Oct 2010
Location: houston, Tx
Posts: 24
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Sorry it's codes 42 and 51 I had them mixed up, but bot was I scared about code 52. 42 I think is because my speedo cable is broken. But I tried to change the tps man they don't make an easy part to take off!!!!
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91 TURBO TARGA TOP 5 SPEED PEARL WHITE.... UNDER CONSTRUCTION... |
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09-09-2011, 02:36 AM
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#2 |
 Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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You'll get both og those if you unplug the TPS while in diagnostic mode. Code 51 will occur if you just tap the throttle. Code 42 will only be caused by a failure or unplugging it.
It's easy enough to get off as long as you use the right size screwdriver... Pulling the throttle body and putting it on your workbench REALLY helps. 
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09-09-2011, 08:05 AM
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#3 |
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Stock
Join Date: Oct 2010
Location: houston, Tx
Posts: 24
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It looked like a pain I still haven't attempted to do it because I think my extra is bad also when I unplug the bad one on the car and plug the other one in it has no effect. I thought it would at least bogg it down. All the codes I'm showing are 41 42 & 51. I might have more in another test. lol this car is full of good codes it could be a lot worse.
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91 TURBO TARGA TOP 5 SPEED PEARL WHITE.... UNDER CONSTRUCTION... |
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09-09-2011, 10:26 AM
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#4 |
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Super Moderator
Join Date: May 2007
Location: Billings, Montana
Posts: 1,034
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Are you plugging this other TPS in while it's on a throttle body and properly adjusted? Or is this other TPS removed when you plug it in?
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1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels |
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09-09-2011, 10:48 AM
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#5 |
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Stock
Join Date: Oct 2010
Location: houston, Tx
Posts: 24
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Removed. Properly adjusted? How do you adjust it or does the ecu do that for you?
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91 TURBO TARGA TOP 5 SPEED PEARL WHITE.... UNDER CONSTRUCTION... |
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09-09-2011, 05:35 PM
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#6 |
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Super Moderator
Join Date: May 2007
Location: Billings, Montana
Posts: 1,034
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You adjust it by checking the resistance between the terminals on the TPS, and rotating it on the 2 mounting screws until the value read is within spec.
Here's the link to the TSRM page on how to adjust it: http://www.cygnusx1.net/Supra/Librar...spx?S=FI&P=101
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1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels |
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