karl newton Posted January 1, 2007 Report Share Posted January 1, 2007 a plugin g3 was installed in my r32 gts4 skyline, now the 4wd light comes on after 15secs of turning the car on and 4wd does not work. The fault code on the eccs comes up error 21 - tps problem .Not sure what could be wrong. installation wiring maybe? Quote Link to comment Share on other sites More sharing options...
ashesman Posted January 7, 2007 Report Share Posted January 7, 2007 Please ring Ashley at Link on 3488854 I know what is causing this and it should be no problem to fix... Quote Link to comment Share on other sites More sharing options...
d Posted January 18, 2007 Report Share Posted January 18, 2007 id say you have disconnected the tps signal wire going to the 4wd/abs controller in the boot,when you installed it. the 4wd system needs to know tps reading speed and rpm so make sure its getting all these signals, there is a led for fault codes on it to.. Quote Link to comment Share on other sites More sharing options...
ashesman Posted January 18, 2007 Report Share Posted January 18, 2007 Yup, we got this under control. Unfortuneately Karl didn't put a post up to say it was sorted. The ECU normally puts out a modified version of the TPS signal for the 4WD controller and trans controller. This was considered when the AdaptaLink was done, but was deemed not necessary as so few people ever use them on auto's and there are some other control wires for the auto that are not used. Unfortuneately we completely overlooked 4WD models. The next revision of the GTS AdaptaLink will have the circuitry onboard to produce this modified TPS signal. Quote Link to comment Share on other sites More sharing options...
d Posted January 18, 2007 Report Share Posted January 18, 2007 are you sure its a modified signial, i ran a haltech on my gtr and it ran fine giving it the normal tps signal? i actually think the wiring is teed off before the ecu anyway? what did they do on old gtr links Quote Link to comment Share on other sites More sharing options...
ashesman Posted January 21, 2007 Report Share Posted January 21, 2007 Its definitely a modified (or scaled down) version of the TPS signal. I have never seen a model where it does not come from the ECU. GTS/GTR Link use the same circuit that was fitted to the AdaptaLink that fixed the 4WD problem. Maybe feeding the normal TPS signal into the controller would be OK, but not really sure. The same signal is used by the auto controller as well. Quote Link to comment Share on other sites More sharing options...
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