2jz.jjk Posted December 15, 2012 Share Posted December 15, 2012 (edited) problem has been fixed and mapped. Edited April 17, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
Guest Budz86 Posted December 15, 2012 Share Posted December 15, 2012 I'm no expert here but 2 things I might suggest. Firstly, change the 02 sensor as cleaning it only works for so long. With a single it's worth the few quid to keep things running sweet, and you should not have to change it again. Also, a much easier 'fix' might be to go a grade colder with your spark plugs. I notice you are running grade 7's, and 8's would probably be better. I run them and I'm only TT BPU. Have a read here http://www.mkivsupra.net/vbb/showthread.php?41927-FAQ-Spark-plugs&highlight=spark+plug+guide. Either way, hope it gets sorted Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 17, 2012 Share Posted December 17, 2012 Cleaning O2 sensors in lemon juice is something they might do in Bangladesh, and in a bad area, at that. The only proper test is a scope pattern of its output, preferably stored to read later after a proper warm up and test drive. If the ecu receives daft info from the O2 sensor it will run on a base map, which will, for safety, be very rich. Quote Link to comment Share on other sites More sharing options...
andz222 Posted December 17, 2012 Share Posted December 17, 2012 Cleaning O2 sensors in lemon juice is something they might do in Bangladesh, and in a bad area, at that. The only proper test is a scope pattern of its output, preferably stored to read later after a proper warm up and test drive. If the ecu receives daft info from the O2 sensor it will run on a base map, which will, for safety, be very rich. lol so true Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted December 27, 2012 Author Share Posted December 27, 2012 (edited) Cleaning O2 sensors in lemon juice is something they might do in Bangladesh, and in a bad area, at that. The only proper test is a scope pattern of its output, preferably stored to read later after a proper warm up and test drive. If the ecu receives daft info from the O2 sensor it will run on a base map, which will, for safety, be very rich. What do you mean by daft info? like i said im new to supras. I've purchased a new oxygen sensor. Edited April 17, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
mellonman Posted December 27, 2012 Share Posted December 27, 2012 what he means by daft info , is that if the o2 sensor is not putting out the correct range of voltage the ecu will de fault to a very rich base map because it cant tell what the engine is doing rich lean , so chooses rich as it is safer, Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted December 29, 2012 Author Share Posted December 29, 2012 what he means by daft info , is that if the o2 sensor is not putting out the correct range of voltage the ecu will de fault to a very rich base map because it cant tell what the engine is doing rich lean , so chooses rich as it is safer, Okay i didnt know there was a name for it, i understood that it was doing something like. Thanks for explaining. does that mean the ECU reading i was getting at .15 Volts should be around greater than 0.4 volts. What are the readings people suually get or your own?? I also been reading people that have their cars tuned up properly sometimes dont have o2 sensors. i thought that was very strange & was contemplating seeking a new tuner. i guess, ill See how i go once i get the correct O2 sensor. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 29, 2012 Share Posted December 29, 2012 This could be a sensor issue, or it could well be a mapping issue. I am not very good with, nor do I like, Haltech software, but if you want to e-mail me the current map and a link to whatever version of software you are running I'll take a look at it. Those screen shots are useless, need much bigger photos with proper resolution. Phones are for phone calls, CAMERAS are for taking photographs, whatever the media tell you Focal length and all that... I would be particularly interested in seeing the cold start map, and knowing if it's always done this, or just started to do it. An engine can be mapped solely off a wide band sensor, it can be mapped to ignore a sensor and revert to a base map if the sensor "goes crazy", it can be mapped with *NO* O2 sensor, it can be mapped to use a narrow band to trim cruise and idle maps. Need more info (or the actual map). Buy a Motec next time [email protected] Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted December 29, 2012 Share Posted December 29, 2012 As above tbh. If you want to email the map over to me I'll take a look also. Can you enable logging and send the log over too, that would be of use . Ben [email protected] Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 1, 2013 Author Share Posted January 1, 2013 This could be a sensor issue, or it could well be a mapping issue. I am not very good with, nor do I like, Haltech software, but if you want to e-mail me the current map and a link to whatever version of software you are running I'll take a look at it. Those screen shots are useless, need much bigger photos with proper resolution. Phones are for phone calls, CAMERAS are for taking photographs, whatever the media tell you Focal length and all that... I would be particularly interested in seeing the cold start map, and knowing if it's always done this, or just started to do it. An engine can be mapped solely off a wide band sensor, it can be mapped to ignore a sensor and revert to a base map if the sensor "goes crazy", it can be mapped with *NO* O2 sensor, it can be mapped to use a narrow band to trim cruise and idle maps. Need more info (or the actual map). Buy a Motec next time [email protected] Definitely keep that in mind next time. I;ve purchased it as it was. Not to sure how i am suppose to log the data. I tried to do it last time but it didn;t connect up. Unless im doing something completely wrong or incorrect software. Anyone know how with the haltech? Also i started the car up yesterday, and i think your right about the cold start map it runs really rich on start up after 5 mins all good. Cause i unplugged the o2 sensor just to see what would happen and it runs way better!!! i'll try again and see if i have the same out come. When I unplugged the o2 sensor, the ECU narrow band sensor was reading at a higher volt of .14 volts compared to 0.10.-0.11 volts when plugged in. On neutral it use to smoke up heaps heaps on idle, but it didnt yesterday ran normal with the exception of slight petrol smell pretty much red lined it after i drove it around. Was surprised not to see smoke trial behind me. also is there a way to check if my wiring loom is playing up?? cause i have a feeling the old owner may have soldered some old parts in such as the attachment for the o2 sensor its from a 7M-GTE and also the sensor was from a 1JZ. Is this done by a voltage meter and also how do you do it correctly??? Cheers for the help! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 1, 2013 Share Posted January 1, 2013 I would download and read the Haltech manual. You should find a feature like "View Sensors" that allows you to see the outputs of all the connected sensors in real time on a laptop screen. It will also tell you if it will log data to a file, and how to extract the map onto your PC so it can be posted across the internet. I WOULD NOT ru it if it's running that rich, you WILL cause piston ring and bore damage necessitating an engine rebuild. It needs fixing before you run it. Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted January 1, 2013 Share Posted January 1, 2013 What ECU is on it exactly? Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 2, 2013 Author Share Posted January 2, 2013 (edited) What ECU is on it exactly? Platinum Sport 2000. Data log has been sent to you guys, check it out if there is any mishaps Edited April 17, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted January 2, 2013 Share Posted January 2, 2013 Platinum Sport 2000. Data log has been sent to you guys, check it out if there is any mishaps. Roughly 13 minutes. Ill try compress and post it up later tonight. Will have a look shortly. What version software are you running? The current is 1.06.2. As for the ECU, you're not going to get much better than that. The aussie's and yanks love them, not many people over here support them though. Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 3, 2013 Author Share Posted January 3, 2013 (edited) Obviously misfiring cause the spark plugs are covered in carbon. Edited February 19, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 3, 2013 Share Posted January 3, 2013 Not have time to look at logs until later or tomorrow, but you need to log the engine water temp sensor, the MAP sensor, the TPS sensor and injector dwell time, plus O2 sensor output. If you sent the map I never received it. Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 5, 2013 Author Share Posted January 5, 2013 Not have time to look at logs until later or tomorrow, but you need to log the engine water temp sensor, the MAP sensor, the TPS sensor and injector dwell time, plus O2 sensor output. If you sent the map I never received it. I've just sent it to you again, hopefully you can have a look soon. Anyone elses input would be great!!! thanks guys. Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 5, 2013 Author Share Posted January 5, 2013 (edited) Im hoping the white smoke is just condensation aswell. Edited March 4, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 6, 2013 Author Share Posted January 6, 2013 (edited) check out data log Edited February 19, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 7, 2013 Author Share Posted January 7, 2013 (edited) I really wanted this problem to be solved first before flocking more money out. Edited April 17, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
Krister Posted January 7, 2013 Share Posted January 7, 2013 (edited) I would take it to a professional tuner down there. You have a standalone ECU which is very hard to point the fault across the web. Those youtube videos will not help to get to the fault origin. The o2 sensor might be the fault, but usually there's a trim limit on the o2 feedback if it's mapped correctly and wouldnt cause more than 15-20% change in the fuel mapping. O2 feedback might not even be switched on on the map. If your temp sensor is broken, the ecu will use which ever reading a broken sensor will give, for example 0 Celsius, causing the ECU to think the engine isn't warmed up and using cold start enrichment all the time. Check the ECU if the water temp readings are correct for starters and forget about the o2 sensor. Edited January 7, 2013 by Krister (see edit history) Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 11, 2013 Author Share Posted January 11, 2013 I would take it to a professional tuner down there. You have a standalone ECU which is very hard to point the fault across the web. Those youtube videos will not help to get to the fault origin. The o2 sensor might be the fault, but usually there's a trim limit on the o2 feedback if it's mapped correctly and wouldnt cause more than 15-20% change in the fuel mapping. O2 feedback might not even be switched on on the map. If your temp sensor is broken, the ecu will use which ever reading a broken sensor will give, for example 0 Celsius, causing the ECU to think the engine isn't warmed up and using cold start enrichment all the time. Check the ECU if the water temp readings are correct for starters and forget about the o2 sensor. Thats what i original thought when i first posted this issue. I had bought INTERMOTOR (Standard motor products group) brand new coolant temp sensor. It didnt seem to work and ecu was giving me readings like it was unplugged. I unplugged the coolant temp sensor to see what happens the ECU reads 120 degrees and flashes red and did the same once i replaced it with this. it was from ebay and not to sure the quality of it. I was contemplating getting a genuine one last time i check it was $120 AUD from toyota dealership. Is there also i way to check if the wire harness is putting out correct output and working correctly?? I purchased a multi meter and just want to know where the probs need to go and what figures i should be getting. I watched the coolant temp raise on the ECU manger starting at 40 degrees stopping at 80 in about 5 mintues. thanks. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 11, 2013 Share Posted January 11, 2013 Sounds like the temp sensor is working fine, look elsewhere. I would trailer the car to a proper mapper myself. Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted January 11, 2013 Share Posted January 11, 2013 As above, the map you sen't me is a base map that's only had a couple of tweaks, it's not been done properly nor tailored to your spec. Haltech are huge in Australia, I would give Matt a call and ask for suggestions as to where you can take it. Quote Link to comment Share on other sites More sharing options...
2jz.jjk Posted January 11, 2013 Author Share Posted January 11, 2013 (edited) Thoughts of installing a wideband before i take it for remapping?? Tossing between these 3 any other suggestions??? 1). 30-4100 Gauge, Wideband UEGO, Digital 2).INNOVATE 3844 MTX-L DIGITAL WIDEBAND AIR FUEL GAUGE KIT 3).INNOVATE MOTORSPORTS MTX-L Thanks. Edited April 17, 2013 by 2jz.jjk (see edit history) Quote Link to comment Share on other sites More sharing options...
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