heavyboost
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I have a mafless file, Rs4 injectors, GT3071. Have had the car with this file for several years, runs good all around, made 400whp etc., but it will not cold start.
Have read through many eurodyne threads and tried different things to try and reduce my injector on time which is 2ms at cold start. It actually starts better when its really cold in the winter since its not overfueling as much then.
I tried changing the inj. correction, alpha n and tps vs. airflow maps with limited success. When it starts up cold it fires up good initially, then starts opening the throttle way too much and injector timing goes way too high. Reducing or increasing expected airflow hasn't really helped. My injector constant is good, my idle and partial load l.t.f.t. are good. It's just this cold start issue. I have also zeroed my warmup fuel table at anything above 0C air/coolant.
Would really appreciate it if any of you had any ideas on where Im going wrong, or would share a file for me to look at.
Here's a log of a cold start this morning. You can see it idles good (cuts down inj. ms) when it goes closed loop.
https://drive.google.com/open?id=0BxBbk87g4C1zZmRlZHVCSFIyZ3M
Have read through many eurodyne threads and tried different things to try and reduce my injector on time which is 2ms at cold start. It actually starts better when its really cold in the winter since its not overfueling as much then.
I tried changing the inj. correction, alpha n and tps vs. airflow maps with limited success. When it starts up cold it fires up good initially, then starts opening the throttle way too much and injector timing goes way too high. Reducing or increasing expected airflow hasn't really helped. My injector constant is good, my idle and partial load l.t.f.t. are good. It's just this cold start issue. I have also zeroed my warmup fuel table at anything above 0C air/coolant.
Would really appreciate it if any of you had any ideas on where Im going wrong, or would share a file for me to look at.
Here's a log of a cold start this morning. You can see it idles good (cuts down inj. ms) when it goes closed loop.
https://drive.google.com/open?id=0BxBbk87g4C1zZmRlZHVCSFIyZ3M