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Thanks for answer mr!!first: well...i´ve reading about the ecu swap and the use of the vcds(vagcom to make the adaptation and vagtacho for get the pin code) so i think there´s no problem whit it. in fact i have a video from ross tech making the procedure.second: for my test i connect the vss pin#1 and pin#3 directly to the battery, but there´s no continuity between pin#2 of the vss and the cluster. previously i get a wire from the pin#3 and the pin#28 of the blue connector from the cluster, but i don´t know if i´ll need them again.third: i found the line of the a27 bus in the bentley and finish in t32/3, (i think so is the cluster blue connector.)My question is: what is the next step?thanks!!
Hi Alphaseinor. i´ve follow your posts on the vw forums. i´m looking for some help. i have a jetta 1.8 turbo swaped from tiptronic 09a to manual 02j, and i can´t make my speedometer works! i´ve followed the next steps:So you deff have a different ECU P/N then I originally Had, but I'm still willing to bet that yours is not recodable at all, as is evident to what you said. That you go to recode it, but it doesn't take. I had the same exact thing...As for the VSS... It really wasn't all that hard once I understood what I was looking at in the wiring diagrams..Pin 1 goes to PowerPin 2 goes to Signal to the SpeedoPin 3 goes to ground (trace #43 is ground)For Pin 2, Snip off the wire at Pin #: 56 at your TCU connector. spice this into Pin #2 of the VSS. DONE!!! (this effectively runs the wire from Pin 2 of the VSS to the Speedo Signal Input (pin 28 of the blue connector for the cluster) =========================================NOW, youe Speedo and Odom will work, BUT... Once tyou get your ECU sorted out, you will still get a CEL that you VSS is implausible. Your ECU 'knows' the car is moving, but cant read at what speed... you need to snip another wire from the TCU connector (Pin #63) and get it connected to the signal output for the speedo (pin # 3 blue connector, cluster)there is an intermediate connection between this and the cluster connector. If you can manager to tie in here, that is pry best. I was not able to so I ran the wire through the firewall just behind the cluster. If you pull off the black cover to the right of the windshield washer motor, you can see where the wires route through... (the line A27 goes to Pin #3 of the blue Cluster connector)..and for good mesure here is the diagram for the Cruse control... Looks like we need to run the +12V to Pin #: 39 of our ECU.maybe i´ve making something bad, please help!!
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