Dave Carroll Posted May 25, 2015 Share Posted May 25, 2015 Completed my boost controller install today and initial setup targeting 1.2bar. only issue is I have the engine management light on, and it wasnt before. I have plumbed in the ebc as the advice elsewhere on the forum and the ebc manual says, and it is running perfectly - no issues with the actual driving itself. I havent read any fault codes yet but I assume this is down the the standard vsv being bypassed? should I expect this warning light? info on the car: -hks evc6 boost controller -bpu supra running 0.9bar previous to this install, now roughly 1.2bar. Usual mods for bpu it makes sense to me that the car wouldnt like the bypass of the vsv but want to check for advice. maybe I can unplug the vsv so I can still have that warning light tell me of real issues?? Cheers dave Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 25, 2015 Share Posted May 25, 2015 what vsv have you bypassed? and is it a 2jzgte engine??? Quote Link to comment Share on other sites More sharing options...
Dave Carroll Posted May 25, 2015 Author Share Posted May 25, 2015 (edited) Yep, 2jz gte. Car is 1993 TT6 sorry. vsv bypassed is the first turbo vsv for the wastegate at the front of the engine. Edited May 25, 2015 by Dave Carroll (see edit history) Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 25, 2015 Share Posted May 25, 2015 your dont hook up the ebc to the vsv valves, but to the wastegate on the first turbo.. one on the housing on the first turbo, and the other to the top off the wastegate.. Quote Link to comment Share on other sites More sharing options...
Dave Carroll Posted May 25, 2015 Author Share Posted May 25, 2015 Yep exactly as I have done. by bypassed I mean capping off the points on the vsv the wastegate and the turbo compressor connect to as standard. Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 25, 2015 Share Posted May 25, 2015 it is not the vsv fault that the engine light is on, so maybe under install you have lost some connection on some plugs down there.. but as it is easy to read the ecu codes out, that would be the first thing i woud do, as you then now where to look.. Quote Link to comment Share on other sites More sharing options...
Dave Carroll Posted May 25, 2015 Author Share Posted May 25, 2015 I will have a look at the fault codes sure However I did reconnect the piping as standard yesterday and the light disappeared... strange Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 25, 2015 Share Posted May 25, 2015 as long as you dont take the plug out off the vsv, i dont see the problem, as it still connect to the ecu.. but read the fault code out, and you will have an idea what is going on.. Quote Link to comment Share on other sites More sharing options...
Dave Carroll Posted May 25, 2015 Author Share Posted May 25, 2015 So read the fault codes, only 1: 42 as I understand, code 42 is the no1 speed sensor circuit, which happens to be one of the pinouts I had to tap into for the ebc. I assume it isnt expected to throw this fault using the evc6 on the supra when tapping into the speed circuit? Or maybe it is advised to tap into the tac line instead? Quote Link to comment Share on other sites More sharing options...
jza800 Posted May 25, 2015 Share Posted May 25, 2015 code 42 is a very common fault code on the supra, i have the same code that come and goes.. but is it nessery to have the speed sensor connectet to the boost controller?? Quote Link to comment Share on other sites More sharing options...
Dave Carroll Posted May 25, 2015 Author Share Posted May 25, 2015 From everything I have read on the EBC, it appears it is necessary to connect it to the TPS pinot and either the speed or rev signal pinot of the ECU to work correctly. However, the manual of course only states to connect it, not whether it is strictly necessary or not, and I do not profess to be an expert on this. I haven't tried without it connected, but when I first installed, and had connected the EBC to what I thought was the speed signal pinot (it wasn't...) the car would not even start. As soon as I connected to the correct pinot, it ran like a dream. Perhaps a shout to Paul Whiffin who I am sure has installed a few of these can shed some experience on this particular EBC? Quote Link to comment Share on other sites More sharing options...
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