Quote:
Originally Posted by rossfashow
ok i am at stage 3 wiring and I need help. it idles at 1500rpm
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You may have too much fuel at idle.
Because you're at stage 3 wiring, more care must be taken. You should never allow emanage to read 100% input injector duty cycle or else it will not operate correctly and run rich. Use the boostcut map to limit the airflow and prevent the duty cycle from exceeding 21ms or 100% injector duty cycle.
Reset your ECU fuel trims, set your boost controller at minimum boost and start over with a fresh map. Make use of the I/J before and I/J after injector sizing; try 360cc before with 0.60 lag and 740cc after with 1.10 lag. If you don't idle at 14.7 AFR, play around with the 740cc and 1.10 lag settings until it does. When you get this setup correctly your car should idle perfectly and drive good throughout the entire range leading up to 100% input injector duty cycle. At this point all your fuel maps, ignitions maps should be empty if you set the correct injector sizing and injector lag times.
Hints:
At WOT, your injector sizing has the biggest influence on your AFR so ignore injector lag times; however, at idle and low engine loads, your injector lag time plays a big part.
Now that you have injector sizing and injector lag times setup correctly you must datalog and find out at what input airflow HZ, boost PSI gets you into trouble (running close to 100% input injector duty cycle). Put this information into the boostcut map to prevent emanage from operating incorrectly. Setup up the Target AFR map and make sure it's working properly. Because of the boostcut limit, your I/J fuel map will be responsible for adding all additional fuel, so we will make an estimate. Having zero's in the map is dangerous as we know it's incorrect and it's safer to over estimate and have the target AFR remove the excess fuel. The target AFR default 0.5% feedback amount should be changed to a larger number such as 2 or 3% so we can reach the target AFR sooner. After verifying everything is good, increment the boost a bit and verify it's good too. You should observe a pattern now and revise your earlier estimates to get the job done faster.
Target AFR Hints:
During a WOT run and when you let up on your throttle to shift, I find the FPR is unable to respond fast enough and causes the wideband AFR reading to temporarily run rich before reading lean. This temporary rich spike will cause havoc. If you always let up at 6000 rpms, you will observe emanage incorrectly modifying the map after 6000 rpms. You need to undo this error.
If you're only working on WOT it's best to keep the throttle position set high to minimize the above error I mentioned above.
After completing an AFR target row it's best to put "-" in there to prevent emanage from modifying the perfect row.
Re: -= Ultimate Emanage Tuning Thread =-
1992 3000GT VR-4 #15 of 24. The ORIGINAL Sandstone Gray '99 Conversion. 
