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TD42 Throttle position switch.
TD42 Throttle position switch.
What is it ? and most important .... Where is it and what does it do ?
GQ 2.8TD. OME. 35 BFG. Fact. Rear Locker on steroids. Air Locker front. Gearmaster Reduction. 6HP Warn 8274.
What model patrol are you talking about. On GQ patrols the TPS was only fitted to automatic TD42s & was used to enable gear changes. On GU patrols it was only there for to be used as an input in the basic emmission system that was fitted to get them complied in australia. It is fitted on the injector pump on top of the throttle linkage
Terry
Terry
My manual GQ Safari had one, apparently operated the butterfly valve in the intake, has something to do with the emmissions.gq banger wrote:What model patrol are you talking about. On GQ patrols the TPS was only fitted to automatic TD42s & was used to enable gear changes. On GU patrols it was only there for to be used as an input in the basic emmission system that was fitted to get them complied in australia. It is fitted on the injector pump on top of the throttle linkage
Terry
http://www.outerlimits4x4.com/phpBB2/vi ... hlight=tps
Posts: 1931
Joined: Sun Jun 22, 2003 10:29 am
Joined: Sun Jun 22, 2003 10:29 am
Location: Everything 4WD, 86 Camms Rd Cranbourne
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As the name suggests, it senses the throttle position and is wired up to the auto computer.
When mine was playing up it wouldn't kick down the gears when the accelerator was put down and it was stuck in top gear (limp home mode).
There are two versions. A 3 wire unit and a 6 wire unit which mine was (for a diesel GQ auto). The 6 wire units are hard to find over here.
When mine was playing up it wouldn't kick down the gears when the accelerator was put down and it was stuck in top gear (limp home mode).
There are two versions. A 3 wire unit and a 6 wire unit which mine was (for a diesel GQ auto). The 6 wire units are hard to find over here.
My club
www.vfwdc.com
My store
Everything 4WD
86 Camms Road Cranbourne
www.everything4wd.com.au
sales@everything4wd.com.au
Phone: 03 59955055
www.vfwdc.com
My store
Everything 4WD
86 Camms Road Cranbourne
www.everything4wd.com.au
sales@everything4wd.com.au
Phone: 03 59955055
afaik the switch side of the TPS is usually an idle switch.
i would assume its so the ECU always knows where idle postion is as the variable resistor can change value due to wear on the contacts (rather than relying on the variable resistor to determine idle). basicly a safe guard in case of TPS failure.
both are used together, for auto box and emmision systems (egr + butterfly)
i would assume its so the ECU always knows where idle postion is as the variable resistor can change value due to wear on the contacts (rather than relying on the variable resistor to determine idle). basicly a safe guard in case of TPS failure.
both are used together, for auto box and emmision systems (egr + butterfly)
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