ALG JOT Posted April 22, 2012 Share Posted April 22, 2012 Hi guys, i have an issue with my emanage system. It was running fine before well did have a slight misfire but was to get this sorted anyway. Anyway was wondering why the speed limiter was still on it with the spec the car had i.e single turbo and supporting mods etc to have it running 520bhp! So had the laptop hooked up as i was told by previous owner there is a tab to click that will take it off. Had that done and car drove fine and all seemed well. Was driving back home and stopped at the lights and the car stalled! Started back up no problem got it home stalled on the drive and left it till the morning. Went to start it in the morning and the same thing happened but then wouldn't start. I hooked the laptop up again and switched the speed limter back off and tried starting which it did then managed to get it back in the drive where it stalled again. Tried starting again but sounded like it was misfiring so i took the plugs out and 3or4 were wet and all were black in colour. I changed them and car fired up no problem and idled well. But went to move it and stalled again! I have since left it like this and have requested the previous mapper to try send me the last map and see if this fixes it. But was wondering if there was anything i could check or adjust in the meantime to get me mobile. The car is a 93 mkiv auto 2jz-gte single turbo conversion. Quote Link to comment Share on other sites More sharing options...
ALG JOT Posted April 22, 2012 Author Share Posted April 22, 2012 no one? The threads i have been reading have given me a few possibly causes... I read that a speed limit defencer with loose connections can cause issues but i thought with the greddy emanage unit it had that built into the ecu? Unless the previous owners left the sld still fitted.. hmmmm... Also read the alternator playing up could cause revs to drop when gear is engaged. Finally after some more searching i found a thread about something to do with the torque converter locking causing it to stall as soon as anything other than P or N is selected. Did a fault code check and i got 22 and 78 which is water temp circuit and fuel pump? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 23, 2012 Share Posted April 23, 2012 Never used the speed delimit on the EMU, only fuel cut, so can't comment on that, also never checked the std error codes with the EMU connected, as i suspected that the EMU might screw with the sensor feed back (where connected) however if the code is showing water temp, then if the std ECU water temp sensor will cause overfuelling when faulty, as a safety measure, and this will show up more at idle/low RPM, hence your stalling. I would check and replace the sensor beforfiddlingng with the EMU, as for the fuel pump, i am not sure as it must be working OK in order to supply enough fuel to run, but this is also worth investigating too. Quote Link to comment Share on other sites More sharing options...
ALG JOT Posted April 23, 2012 Author Share Posted April 23, 2012 I cant really see it being the water temp sensor but if they cheap and easy to replace then i might aswell if it will clear the code. Where abouts are they located on these engines and anyone have a part number or price? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 23, 2012 Share Posted April 23, 2012 (edited) I cant really see it being the water temp sensor but if they cheap and easy to replace then i might aswell if it will clear the code. Where abouts are they located on these engines and anyone have a part number or price? Well if you think about it, the EMU fuel and timing maps will only be influencing things when it out of closed loop IE on boost, so if its running rich there it wont be as noticeable as at idle or low load, so the ECU water temp sensor is one of the first things i would look at, closely followed by the lambda sensor. By the way the ECU water temp sensor has the biggest affect on low load fueling, as if faulty it can either cause the ECU to supply way too much fuel, because its sending a signal that the engine it at very low temps, or as default still pretty rich. If there was a problem with the EMU the map its unlikely to affect low load areas, so make perfect sense to me, anyway you asked for help, its up to you if you take it or not! take it back to the people who did the work on it and ask them to sort it. Edited April 23, 2012 by Tricky-Ricky (see edit history) Quote Link to comment Share on other sites More sharing options...
Yakky Posted April 23, 2012 Share Posted April 23, 2012 ECU stock water sensor signal is easily viewed in Emanage logs.. ruled out easy for free. Car is massively rich by the sounds of it. What are the AFR's? or if you don't have an AFR gauge, then what is the injectors that you have and duty cycle and we can tell you if its normal at idle. Stalling at idle is well below 10 AFR.. off the scale big time. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 24, 2012 Share Posted April 24, 2012 Good point about the logging, i forgot about it because i never used it, always relied on my Innovate logging, He never mentioned AFRs so i supposed he didn't have a wide-band. Quote Link to comment Share on other sites More sharing options...
ALG JOT Posted April 29, 2012 Author Share Posted April 29, 2012 Sorry forgot to mention the mods Apexi AVCR boost controller. Precision 6262 billet turbo on reworked obx manifold. HKS racing bov. Sard 650 injectors Walbro fuel pump FMIC. Twin autobox coolers. E-manage ultimate with 3bar map sensor mapped to 1.5bar. Innovate Motorsports AFR Gauge See im still new to supras i come from the subaru world and i come in peace lol! I know no stranger to big power but having it all on another car is still new to me however i am quickly catching on. I have spoke to 'dude' about switching to a hks fcon pro system and hopefully solve my current issues. He told me i have issues because of the size of injectors but i was wondering why i didn't have the problems when i bought it and only now issues start? I changed the water temp sensor just for the craic and it seemed to have solved the problem. I drove it round the estate for a quick test then when i pulled onto the drive it stalled and didn't start again. I should of watched the afr gauge but was to excited habing it running again hahaha. I am going to see if i can get her running again and this time will watch everything. If all else fails hopefully dude is coming to pick it up and map the new ems Tuesday Quote Link to comment Share on other sites More sharing options...
ALG JOT Posted April 29, 2012 Author Share Posted April 29, 2012 Just did a quick test.. Before Starting Car: AFR -20.9 Water Temp Sensor -7.5 Input Duty Cycle -0.0% After Starting Car(Idle): AFR -Flicker between 16.6 to 18.5 Water Temp Sensor -12.9 made it to 18.2(then tried to drive it and stalled) Input Duty Cycle -4.0-4.3% Didn't manage to catch the afr readout as it stalled though :/ Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted April 29, 2012 Share Posted April 29, 2012 EMU shouldn't have any issues with 650cc injectors, however it does have some shortcomings with handling injector lag times, (just takes some fiddling) Initially it sounded like you had overfuelling issues, but if your seeing 16-18 AFRs on start up, then it could still be a temp issue, or a settings problem with the EMU, i have know them to loose some settings in the past, however ihadd no problems with using/mapping mine and was running around 550 BHP with no problems at all. But if your going for the HKS Fcon its a moot point, shopefullyly it will all be well again. Quote Link to comment Share on other sites More sharing options...
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