I have been unable to get a USDM ROM to work with no CELs. I have however been able to get both an EDM and a JDM ROM to work with no CELs.
Sounds like you're running a USDM ROM?
Agreed, USDM does throw the both codes. The EDM rom does not Im running that now. Just have to disable the EGR and boost solenoid that Im throwing codes for. Also looking into making the knock light the CEL like in the USDM roms. Im happy I have my buddy with an evo helping me with some of this ecuflash stuff because I've never used it before.
Is this in the 1G in your avatar? Does the car start/run okay on the swapped ECU?
So, the evoscan cable won't even connect to datalog? Seriously is up with tactrix discontinuing the 1.3 cable when their new 2.0 cable is so effin' worthless... and nobody ever gets rid of those old cables either. I wonder how long it'll be before some enterprising individual out there starts counterfieting the old tactrix 1.3 cables.
edit: Nevermind, went back and read the posts you made on the last page. Having the options set for 40 posts per page screws with me sometimes.
No, this is on my 2g. I can't start the car because it still has the immobilizer enabled. Evoscan logs, but ecu flash wont connect.
Best bet is to look on EvolutionM for the tactrix 1.3 cable. They pop up quite often but you have to be lucky to catch it as soon as it comes on. You cant order the Tactrix from Evoscan theselves? They have a link to buy it on their website?
funny i just bought one and it works fine for me... installs as an "openport 1.3U" cable and i have already flashed my ecu 4 times with it.
Awesome, great to know. Which version of EcuFlash are you using, 1.40 or something older?
Quote:
Originally Posted by jjgrizz73
Best bet is to look on EvolutionM for the tactrix 1.3 cable. They pop up quite often but you have to be lucky to catch it as soon as it comes on. You cant order the Tactrix from Evoscan theselves? They have a link to buy it on their website?
flashed my car with the a EDM ROM and so far it seams to run pretty good for the most part. has a bit of a hessitation at cruse, idle is fine and A/F raitos look good all around, although i havent taken it up over 4000 rpm. check engine light came on again i just havent downloaded it yet to see what code popped up.
Apparently the EvoScan cable is different, check the thread I linked to over on evom.net. Yeah, those old tactrix cables go very quickly.
Im using the evoscan cable and it flashes and works perfectly for me. the only difference may be the 12pt connector only has 1 wire on it instead of the 3 or 4. But for flashing it only uses the one pin which is on there. Believe pin 79 goes to it.
Im using ecuflash 1.4 with the evoscan cable and have had no problem. But my orginal question was if anyone was if your using stock evo injectors how did you go about doing the maf scaling? Im new to tuning but im a little lost since its the stock injectors but with a bigger maf. I can't get my car to idle at all, and im also trying to figure that out.
If you have the stock injectors in now (450cc) did you rescale the injector sizing and latencys for them. You may just not be getting enough fuel. If so stick in the 560 evo injectors with the stock values and see if it works better.
Cool, glad to see the EvoScan cable is working well for everyone, I'll be purchasing that one soon then.
clockworktoy, I think all you need to do is rescale the MAF. The evo injectors shouldn't be any issue as long as you left the deadtime/latencies etc alone at the stock evo values.
Quote:
Originally Posted by johnnyboy55
no dont raise the maf scalings --- i was referring to injector scaling only... for maf size i have 257.7 i attached my maf scalings for u to view... -- im using 450 cc blue tops from a 1g and i use 424 injector scaling -- u may need to raise or lower depending on ## trims
Cool, glad to see the EvoScan cable is working well for everyone, I'll be purchasing that one soon then.
clockworktoy, I think all you need to do is rescale the MAF. The evo injectors shouldn't be any issue as long as you left the deadtime/latencies etc alone at the stock evo values.
Yes but right now hes having idling problems with the stock 450cc injectors, thats why I mentioned to just put the stock evo injectors in so the values will already be set. Atleast thats what I got out of his post...
jjgrizz73, you're right, the correct injectors for the current settings being swapped in will definitely improve the idle and basically help everywhere in the rpm band. But what I was saying is that if he hasn't re-scaled the MAF then the ecu is still going to be adding the wrong amount of fuel since the IPW is in part determined by the MAF signal.
I would take a look at the latencies then clockworktoy. Not sure what to use for 450s but if you swap in the 560s or larger the values are all out there, I think there's a link somewhere on Evom to the table AEM sends with the purchase of an EMS. Has a lot of the more popular sizes and the voltage based values in a table. I'll see if I can find it...
I see exactly what you mean. I was running 680's when I did the swap. My friend did rescale the maf because it was running rough at idle. But after he did, and I switched to the EDM rom the car is idling perfectly. I also adjusting the latencys and scaling for the injectors. I'd put the evo ones in anyways since you are going to and use the stock values. I heard the evo scaling run slightly rich but they are close.
These are the settings i was trying to use with stock 450 injectors. I was kind of confused seeing as the OP didn't mention anything about the latency since these are smaller than the stock evo injectors. So if i just drop in the evo injectors would i still need to rescale the maf since its a smaller maf? (smaller than the evo maf)
Sorry if all this sounds kind of noob, im just new to the whole tuning thing. I got help from a friend when tuning with my afc in the past.
I still have no idea what the latencies should be for the 450cc injectors, but:
Found this on Evom, for stock JDM Evo injector settings, just in case you need that when you install the Evo injectors. I'd only check the table in EcuFlash to see how close it is to these if you haven't fudged them any yet.
edit: I type slow. It looks like you're still using the stock 560cc latency values, I'd go for the swap right now instead of guessing/calculating what the 450 latencies should be using fuel trims. Less headaches.
OK well i did another flash to my ecu fixed my MAF scaling ( i forgot to adjust them initially) i also checked my DTC's, and not in that order. After switching to the EDM ROM my 2 codes for the Crank sensor the 1 for evap SOL and the one for something else i cant remember off the top of my head, are all gone. now i have a code P0505 and P0622, idle control circuit and Generator FR Terminal Circuit Malfunction. has anyone else had a problem with either of these two codes after switching? i am going to mess with it here in a bit, i need to zero out my translator and mount the ecu in its place.
Problem solved! Just reflashed with the evo injector scaling, and the evo injectors in. Car idles like before BUT the rpm tach does bounce around a bit at idle and sometime even just drops to 0 (car still on and idling normal during all of this) Im going to do a little bit of driving and see how it goes.
Yes, I figured the car would be fine with the evo injectors and stock tables in place. Good to hear, my tach also does that...been a sligtht problem but when on the gas it reads properly so I dont mind much.
Gus, I'll take a look at your car at the meet tonight. Working on a new base map for ya, just playing around with it. So tonight I'll get the car to run right and maybe get a little street tooning. Next dyno day I'll try to dial you in. :P
Yes but right now hes having idling problems with the stock 450cc injectors, thats why I mentioned to just put the stock evo injectors in so the values will already be set...
Hmmm...I'm about to put some 850's in next week. I am currently running the stock Evo injector latency values. Will the latency values need to be changed when I bump up to 850s?
Hmmm...I'm about to put some 850's in next week. I am currently running the stock Evo injector latency values. Will the latency values need to be changed when I bump up to 850s?
Yes def, look it up on EvoM for which brand injectors. Theres a whole thread dedicated to latencys and flow rates for each brand and size injectors.
Playing with his ECU last night, saw the issues with the whole get up. The bouncy crazy tach has something to do with the ecu to tach output signal. The transistor pack to ecu rpm signal is correct (car runs) but it has something to do with the signal output to tach calibration or the way the signal is sent. Either can figure out the difference between tach operation on the 2g and Evo and create some sort of buffer to get the signals right, or just run an aftermarket tach.. Another thing that was stated in an above post, stock boost gauge will not work, yes, it gets its signal from the ECU as an estimated boost off of airflow count, load, AIT, and Baro. Couldn't get the 2step to work, has anyone had a chance to play with stat rev limit (2step). EVO8.5/9 came with a stat rev limit from the factory. Talking to Scot Gray about it, and the ECU requires two conditions to be met in order to enable stat rev. Clutch Switch and Vehicle speed. The clutch switch pin 67 see's a constant signal, and the clutch switch breaks that signal. If anyone feels compelled to get the 2step to work, (at least attempt this) Cut wire going to pin67 and leave the harness side dangling, splice a 3-4' wire into the BLACK/RED wire coming out of your cruise control switch (top of clutch pedal travel) and then connect that wire to pin67 coming out of the ECU and give the 2step a test.
Something about the EDM rom requires the clutch switch and the JDM/USDM or some other one only has the vehicle speed prerequisites. You can just to the JDM/USD and deal with the immobilizer and get the stat rev to work, but if this method works it in essence will work and you can set it up to cut the signal for vehicle speed at the same time, in essence you will have a NLTS set up.
Other than that, played with the ignition tables a bit to clean it up, and then started working on the fuel tables and taking this is on a laptop from 1902 maybe, every task took three times longer than it should but in the end the laptop died so. HAHA no progress there.
So the maf scaling of injector latency didn't have as much to do with the car idling as i though. Even after reflashing the car would have a hard time idling when cold, and as soon as it reached operating temp it would just died. Fixed this by messing with the biss screw so thats solved. Next like sam said the tach problem is definetly something im going to have to have to address. While at WOT and above 4k it will just drop and bounce around from 1k-4k till i let off. And sam did you get a chance to look at my map today? I would like to see what kind of changes you made. I hope we can have another dyno day so we can actually do some tuning and turn up the boost ;].
So the maf scaling of injector latency didn't have as much to do with the car idling as i though. Even after reflashing the car would have a hard time idling when cold, and as soon as it reached operating temp it would just died. Fixed this by messing with the biss screw so thats solved. Next like sam said the tach problem is definetly something im going to have to have to address. While at WOT and above 4k it will just drop and bounce around from 1k-4k till i let off. And sam did you get a chance to look at my map today? I would like to see what kind of changes you made. I hope we can have another dyno day so we can actually do some tuning and turn up the boost ;].
is up with tactrix discontinuing the 1.3 cable when their new 2.0 cable is so effin' worthless... and nobody ever gets rid of those old cables either. I wonder how long it'll be before some enterprising individual out there starts counterfieting the old tactrix 1.3 cables.
or hit me up on AIM.
