JDM TT ECU Speed limiter

[Cruzer]

Ok.. I can't find anything anywhere about dissabling the speed limiter on a JDM TT ECU exept a UK site where they recommend a speed limiter cut controller, So I have one installed and found this out, I had the CVs out with W5MG1 Tranny full of oil and outshaft holes plugged, So I test the delimiter, It ran over 160 in fourth gear no problem. I unplugged the Greddy delimiter and sure enough it cut out @ 120mph. So I plugged the unit back in and reinstalled the CVs and did a road test, Its cutting out @ 120 agian even with the delimiter working, I checked all the wiring its all good, So Im thinking there is an ABS signal bypassing the delimiter? Im really stumped and could use some ideas to try. Maybe I can hotwire the fuel pump so the ECU cant turn it off... dunno? any ideas? or know of someone else with a JDM TT swap?

[Cruzer]

Problem solved, On a JDM TT first gen style ECU Cut pin #66 yellow wire, my speedo still works and no more limiter. ECU # MD189411 Hope this helps other TT JDM ECU swaps.

[ExExGuy]

Bookmarked thread for future reference thanks will have to see if mine cuts out...

Too bad the speedo in my JDM GTO only goes to 180 km/h anyway the 280 and 300 km/h upgrade is super pricy too!

[TooFast4Radar]

Great info! I'm moving this to the "How-To" section!

[vr4maoriguy]

does this actually work !?
im sick of smoking ppl thru 1st 2nd and 3rd then watch them pull away as im stuck @ 200kph

[Malaziel]

Originally Posted by vr4maoriguy

does this actually work !?
im sick of smoking ppl thruogh 1st 2nd and 3rd then watch them pull away as im stuck @ 200kph

It does indeed work. Just one little snip and you too can engage in potentially deadly speeding!

[vr4maoriguy]

wooot!!! i tried it today, and laughed like a little kid as i watched the speedo fly off the clock in third gear !!!
thank you for posting this thread. you are a legend!!!

sadly however, i snipped my mates one , and he crashed tonight , writing his car off

[3si3000]

hey i just cut the ecu wire the yellow one,and it only made my car go maybe 10-15km faster then it cuts off again and is gutless any ideas?did i cut the wrong wire or is there something else to do .thanks

[keithmac]

Best bet is to feed the delimiter controller wire straight to pin 66 on the ECU, some cars have problems with no speed input to the ecu.

I have an MPH/delimiter chip so the 180km/h is actually 180mph, feed an output to the ECU and to the cruise controller.