bondango Posted December 18, 2006 Share Posted December 18, 2006 agree with alex, but i would first eliminate any fueling problems first and try and get an FP reading so rule that out. Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 Yep - Fuel Pressure - STATIC. Not with the engine running Throttle Position Calibration Then move onto the map...but reload the orginal base map before testing. Quote Link to comment Share on other sites More sharing options...
bondango Posted December 18, 2006 Share Posted December 18, 2006 Forgot to add, This emanage has just been installed?? are you using the Stock pressure sensor or the Greddy sensor?? have you went over all your wiring to eliminate any bad connections. Something always worth double checking. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 Okay, some progress 1) The fuel pressure was 43psi! I've changed it to 34psi and the engine now starts and runs (although still over fuelling and running very rough) 2) Ian's base map is reloaded 3) I 1st went to try the data analysis but the option for throttle position was greyed out. I then went to Parameter settings and clicked "Throttle Setting", then followed the test for 0 and 100% throttle. Went back to data analysis and most options are now available. I've run the analysis and its recording zero for throttle position when idling Just seen your last post while typing this, but did click for 'Normal inj duty cycle' and 'Total inj duty cycle' during the data analysis. It shows 3% for both while idling Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 Yep - Fuel Pressure - STATIC. Not with the engine running Throttle Position Calibration Then move onto the map...but reload the orginal base map before testing. It was done static with those two points bridged on the diag. port Forgot to add, This emanage has just been installed?? are you using the Stock pressure sensor or the Greddy sensor?? have you went over all your wiring to eliminate any bad connections. Something always worth double checking. Yes, its just been installed. I'm using a brand new pressure sensor from Greddy. I spent a lot of time on the wiring and was very careful with the connections, however I willl pull it out tonight and redo it everything else has been checked Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 Duty should be in Milliseconds... Glad it's working now...it's usually the simplest things You'll now need to tinker with that 1 cell on the map to get it right, but don't forget all the time it's running the engine is warming up and the goal posts are moving. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 Duty should be in Milliseconds... Glad it's working now...it's usually the simplest things You'll now need to tinker with that 1 cell on the map to get it right, but don't forget all the time it's running the engine is warming up and the goal posts are moving. Well its far from sorted - the engine barely runs! I'm concerned about bore wash as its very smoky Surely duty cycle should be percentage, duty duration in ms? Do you know what figures I should see there as they mean nothing to me! Which cell should I be tinkering with? The top one on the 2nd column of the airflow map? Edit, ignore the last comment, I know what you mean now Quote Link to comment Share on other sites More sharing options...
Wez Posted December 18, 2006 Share Posted December 18, 2006 I dont know much about the EM but hear goes. Does the EM have a feature that follows the current cell so you know where on the map you are currently running? If so watch it and then pull fuel from that area until the car runs nice AFRs. (as already mentioned you have warmup enrichment to mess with too) Another test would be to have the ignition on without the car running to check that your MAP sensor is working correctly, it should read 0kpa or atmospheric, anything else means the calibration for the map sensor is wrong which will also mess you about. Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 I dont know much about the EM but hear goes. Does the EM have a feature that follows the current cell so you know where on the map you are currently running? If so watch it and then pull fuel from that area until the car runs nice AFRs. (as already mentioned you have warmup enrichment to mess with too) Yes it does (MAP TRACE), but I and Darryl know which cell it's in. It's a case of trimming it to suit. Try pulling fuel out of that cell Darryl...and if you get no joy try taking fuel out of the 3rd cell along the top. aother test would be to have the ignition on without the car running to check that your MAP sensor is working correctly, it should read 0kpa or atmospheric, anything else means the calibration for the map sensor is wrong which will also mess you about. There is no calibration for the MAP, but yeah he can read on the real time display if it's at 0.00 with full electrics. Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 Well its far from sorted - the engine barely runs! I'm concerned about bore wash as its very smoky Surely duty cycle should be percentage, duty duration in ms? Do you know what figures I should see there as they mean nothing to me! Which cell should I be tinkering with? The top one on the 2nd column of the airflow map? Edit, ignore the last comment, I know what you mean now Sorry yeah it's the milliseconds one I wanted...should be about 2... Yes cell 2 at the top is the cold start....but it will scale the reduction between that cell and the cell the right or left depending on the actual rpm's being right or left of the cell. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 I've set the cells as suggested (inc the one to the right of the cold start cell), tried -40 up to -50 but it makes no difference. AFR's are 10.00 on the gauge (i.e off the scale) Another test would be to have the ignition on without the car running to check that your MAP sensor is working correctly, it should read 0kpa or atmospheric, anything else means the calibration for the map sensor is wrong which will also mess you about. The reading is 0.00 so its looks like the pressure sensor is working Sorry yeah it's the milliseconds one I wanted...should be about 2... Yes cell 2 at the top is the cold start....but it will scale the reduction between that cell and the cell the right or left depending on the actual rpm's being right or left of the cell. You might be on to something here. Injector duration is reading 7.1ms Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 Right-ho 7.1 ms! Blimey no wonder it's cr4pped itself. Is that when it's started...after 30secs...after a minute? About 30secs after starting it should be getting down to that 2ms area...but when it's cold starting it will go rich (larger ms numbers) upto 9ms on it's first few breaths and then starting to scale down immediately. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 That was after about 15 seconds. I'll leave for a minute or two and see what happens One of the neighbours already complained about the smell of Petrol Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 That was after about 15 seconds. I'll leave for a minute or two and see what happens One of the neighbours already complained about the smell of Petrol lol - probably wise to have just one more crack at it today and then let the engine breathe/vent petrol... if you can datalog it, please do so and then send us the log. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 Okay, just ran it for 2 minutes. After a minute the inj duty duration leveled between 4.4 and 4.7ms. Afr's are flat 10.00. I'll send a log file now Could this be a stuck injector? Or perhaps a wiring issue BTW, I followed the wiring guidelines on MOHDparts.com but the colours on their wires were different to mine. Maybe its only running on some cyclinders? Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 LOL - Huston we have a problem His name is.... ... well we'll see... Right from looking at the map and from your confession, we (Ian and I) have decided that you just might have made a wiring mistake . But I need you to confirm. If you followed Mohd's instructions did you get your airflow signal from Pin 66 or Pin 62? So as to not waste too much time you should be on Pin62 for a MAP. If you are already connected to pin 62 then we have an issue with the map sensor on the car...according to your datalog it's registering 0.09v...ie f**k all on the airflow signal - so either you've hooked upto the MAF on pin 66 which is wrong...or your MAP sensor is broken/disconnected. Let me know how you get on. Oh and rest the map back to Ian's default again, if you do find an issue with the wiring...always start from that base line. With the next datalogging can you record every option possible thanks. Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 Oh dear I'm going out to double check, but.... Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 2nd thoughts I don't need to check. I followed those instructions to the letter. So job for the next hour - reconnect the wires on pin 66 and splice into pin 62. Back shortly... Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 You don't need to worry about reconnecting 66's they are unused...just make em safe. On Pin62 you should have much more luck lol So wire up to 62. Re-load the map and run the datalogger on first start. Quote Link to comment Share on other sites More sharing options...
Wez Posted December 18, 2006 Share Posted December 18, 2006 Wouldnt you also need to do the throttle calibration again too? Quote Link to comment Share on other sites More sharing options...
Alex Posted December 18, 2006 Share Posted December 18, 2006 Wouldnt you also need to do the throttle calibration again too? No the unit remembers it, seperately from the map. But it's something you can do again for peace of mind. Quote Link to comment Share on other sites More sharing options...
Wez Posted December 18, 2006 Share Posted December 18, 2006 Thats a cool feature. Quote Link to comment Share on other sites More sharing options...
bondango Posted December 18, 2006 Share Posted December 18, 2006 2nd thoughts I don't need to check. I followed those instructions to the letter. So job for the next hour - reconnect the wires on pin 66 and splice into pin 62. Back shortly... Ive a 15 minutes break here Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted December 18, 2006 Share Posted December 18, 2006 I know that Ian advocates the use of the airflow map to make corrections for larger injectors, but just for a test it might be worth going back to the global injector settings and see if it will run better on that, i know that people have had problems running bigger injectors with the blue, mainly on other engines, i suspect that it maybe down to there being no lag set up on the blue, and AFAIK this is taken into account of in the global settings, the overall lag time will have a impact on the fuelling but will be very noticeable on idle, makes sense to me, anyone else? Quote Link to comment Share on other sites More sharing options...
Homer Posted December 18, 2006 Author Share Posted December 18, 2006 Nearly there! Its runs much better now (obviously) and afr's are more healthy and injector duration is now 2.6 However it doesn't sound like its running on all cylinders. I can only guess this is due to the strange wiring issue I had with my EMB. On step 4 of this page: http://www.mohdparts.com/emanage/install/2jz-gte_install/index.html in the install guide it shows the back of the plugs. On my plugs several of these wires were the other way round example: The two yellow wires were the other way round, same for the pink pair and the purple pair. I wired mine up assuming the wiring colours were wrong on the harness (i.e. so the yellow/white was actually the yellow/black). is this likely to be the cause, is it going to cause any damage if I swap them over? Quote Link to comment Share on other sites More sharing options...
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