Ford Falcon BA XR6T Turbo 4.0
Hello, first time poster.
I have an issue with a car, unknown history which is a good start.
Modified with a larger turbo charger, blow off valve, wastegate and larger intercooler.
Car had a replacement ecu fitted, which was a crank and no start condition (PATS disabled). I did get it to run for a short time but it did not run on all 6 cylinders, heavy smoke out the pipe (over fuelling) and when I compared a stock XR6 turbo ecu/map to the replacement ecu which was sold to the owner as a "pre tuned big HP ecu" I noticed some wildy different settings incl injector pulse width, injector flow numbers etc etc, and lots and lots of differences.
So, I migrated/copied all the settings from the original or stock ecu over to the new ecu (stock ecu had its own problems, in where you had to heat the ecu with a heat gun before the vehicle would start.. bizarre, I know.. something inside must need to be heated or increase resistance? havent looked into that yet.) and once the new ecu was the same as the old one, I wrote the file to the car and she fired right up! sounded great, idled nice and was responsive and crisp to any throttle input in neutral.
As I was letting the engine reach operating temp, the idle began to deteriorate, however was still responsive if you blipped the throttle, just struggled to idle (this was after 10-15 mins and coolant temp had reached 70 deg celc.
After not long it stalled by itself. I managed to restart it but it started with difficulty, not like the first start which was instant and no hesitation. Again it ran for a few minutes before struggling to idle then stalled. After that it would not restart unless you put had throttle at 100%/WOT.. and then it was difficult to start.. it ran again for a while, still very responsive to throttle input, you could blip it and rev it up and it was nice and crisp, no smoke etc.. but again, lost its ability to idle and stalled again. and then it was a crank no start condition no matter what. You can hold WOT and it will cough and try to start but will not actually start and run by itself.
I left it at that and now need to research and think about what is happening. Owner will try and start it again today now that it is cold again incase it is a heat related issue?
I have a log file and I have my map/ecu file if anyone wants to look or thinks they can assist?
I can try answer more specific questions to try and problem solve.
Thank you,
Kai
p.s. my HP Tuners did not or does not seem to be able to read or log TPS or Fuel pressure? and few other paramenters/data which is annoying in this case.. is this something I need to set up or does the BA ford ecu/hp tuners not support this for this model...