dmcgahey Posted December 16, 2019 Share Posted December 16, 2019 Hi all, Just purchased a fantastic 1995 Supra NA 5 Speed Manual. It is in great condition except it has two minor issues and I think they might be related but unsure. Firstly, the car hesitates and feels like it is bogging down low but after 2500~ RPM it seems to run fine. There is no check engine codes and nothing looks out of order. Secondly, the tacho has recently gone haywire, and seems to be getting worse. Idle the tacho reads 4-5k and then when driving, it just sits at the 6 o’clock position. The actual idle is okay, but the tacho is crazy. Given these two issues I am having, I was thinking it was the ignition module but I have no idea how to verify or if the first issue could even be caused by a faulty ignition module. Would appreciate some help on this one David Quote Link to comment Share on other sites More sharing options...
Dnk Posted December 16, 2019 Share Posted December 16, 2019 (edited) This might be of use http://www.mkivsupra.net/vbb/archive/index.php/t-235566.html? Also if you look on the homepage you'll find the Repair manuals which cover all subjects on the mkiv Edited December 16, 2019 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
dmcgahey Posted December 16, 2019 Author Share Posted December 16, 2019 Thanks for the suggestion. But that really doesn’t come the same issue, sounds like that guys timing was out. The tacho has slowly gotten worse, was first alright and just had issues when cold, the today if would seem as if the values are just multiplied but it is getting worse now Quote Link to comment Share on other sites More sharing options...
Scooter Posted December 16, 2019 Share Posted December 16, 2019 Thanks for the suggestion. But that really doesn’t come the same issue, sounds like that guys timing was out. The tacho has slowly gotten worse, was first alright and just had issues when cold, the today if would seem as if the values are just multiplied but it is getting worse now Is it running in KM's and Km/Hr or does it have a speedo convertor? Quote Link to comment Share on other sites More sharing options...
dmcgahey Posted December 16, 2019 Author Share Posted December 16, 2019 It is running KM and KMPH, and don’t believe it has a converter. I will be wiring up a external Tacho tomorrow running directly off the ignition module. This will confirm if the ignition module is faulty or if it is the tacho itself. Quote Link to comment Share on other sites More sharing options...
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