Tuning help
03-26-2017, 09:23 PM
#1
Instructor
Thread Starter
Tuning help
Hey guys need some tuning advice. I have just finished with some upgrades and I mad adjustments in HP Tuners but I am having a couple of issues.
First, it’s a 2001, upgrades: cold air intake, comp cams cam specs 219/227 duration at .050 with a 112 LSA, BeeHive springs, 43 lb fuel injectors, BBK Headers, and TCI 3800 stall (other mods and upgrades were made but none that would affect a tune) I have attached my current tune and log file.
Issues, when cranking it revs to 17-1900 for about 10-15 seconds then comes to idle at 900, when placed in gear it revs to 18-1900 and stays there until I put back in park.
Thank in advance for any help.
First, it’s a 2001, upgrades: cold air intake, comp cams cam specs 219/227 duration at .050 with a 112 LSA, BeeHive springs, 43 lb fuel injectors, BBK Headers, and TCI 3800 stall (other mods and upgrades were made but none that would affect a tune) I have attached my current tune and log file.
Issues, when cranking it revs to 17-1900 for about 10-15 seconds then comes to idle at 900, when placed in gear it revs to 18-1900 and stays there until I put back in park.
Thank in advance for any help.
03-27-2017, 01:14 AM
#2
Le Mans Master
Member Since: Aug 2005
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St. Jude Donor '13-'14-'15
Both of these issues are related to your "throttle follower tables"
Both in P/N and in gear---- To eliminate a hanging idle as you seem to have you need to ADD a % to the decay rate----I would start by adding 20% and see what happens---If you go too far you will get the opposite affect where the engine wants to die when lifting off the throttle
2ndly Too much "desired airflow" both in gear and P/N will make the idle hang --try a follower adjustment 1st and if that doesn't correct it try the desired airflow table
Both in P/N and in gear---- To eliminate a hanging idle as you seem to have you need to ADD a % to the decay rate----I would start by adding 20% and see what happens---If you go too far you will get the opposite affect where the engine wants to die when lifting off the throttle
2ndly Too much "desired airflow" both in gear and P/N will make the idle hang --try a follower adjustment 1st and if that doesn't correct it try the desired airflow table
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bamavette11 (03-27-2017)
03-27-2017, 04:49 PM
#3
Instructor
Thread Starter
Thanks tblu92, I will give this a try.
Both of these issues are related to your "throttle follower tables"
Both in P/N and in gear---- To eliminate a hanging idle as you seem to have you need to ADD a % to the decay rate----I would start by adding 20% and see what happens---If you go too far you will get the opposite affect where the engine wants to die when lifting off the throttle
2ndly Too much "desired airflow" both in gear and P/N will make the idle hang --try a follower adjustment 1st and if that doesn't correct it try the desired airflow table
Both in P/N and in gear---- To eliminate a hanging idle as you seem to have you need to ADD a % to the decay rate----I would start by adding 20% and see what happens---If you go too far you will get the opposite affect where the engine wants to die when lifting off the throttle
2ndly Too much "desired airflow" both in gear and P/N will make the idle hang --try a follower adjustment 1st and if that doesn't correct it try the desired airflow table
