PCM Diagnostics & Tuning HP Tuners | Holley | Diablo
Sponsored by:
Sponsored by:

Stalls when A/C on in gear???

Thread Tools
 
Search this Thread
 
Old 05-15-2009, 10:22 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
0235SS93's Avatar
 
Join Date: Nov 2007
Posts: 580
Received 0 Likes on 0 Posts

Default Stalls when A/C on in gear???

My procharged camaro is runing perfect, excpet it tries to die when you turn the a/c on in gear. should I just raise the a/c on in gear idle table or work with the stall saver table?
Old 05-16-2009, 09:47 PM
  #2  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
0235SS93's Avatar
 
Join Date: Nov 2007
Posts: 580
Received 0 Likes on 0 Posts

Default

Anyone???
Old 05-16-2009, 09:57 PM
  #3  
TECH Junkie
iTrader: (33)
 
JonCR96Z's Avatar
 
Join Date: Jan 2003
Location: Asheboro, NC
Posts: 3,008
Likes: 0
Received 18 Likes on 10 Posts

Default

First check under Engine>Torque Management>Engine Torque> AC Torque 'Max Retard'. Zero out that whole table.
Old 05-17-2009, 05:13 PM
  #4  
FormerVendor
iTrader: (45)
 
Frost's Avatar
 
Join Date: Jul 2005
Location: Richmond VA
Posts: 5,913
Likes: 0
Received 2 Likes on 2 Posts
Default

I usually goto Engine>Torque Management>Engine Torque> AC Torque Vs. AC Pressure and increase this table. This effectively adds IAC and fixes weakened idle. If you only take a hit when the compressor first engages (or to eliminate/reduce this after you fixed the weak idle) I use Engine>Torque Management>Engine Torque> AC Torque Vs. Inertia Torque. Once you up this value to fix the hit, you may get some new RPM hang or light flare. To get this gone, I increase the decay that applies to the extra airflow that we just added to cover the hit on compressor engagement. This decay table can be found next to the Inertia Tq table labeled Ramp
Old 05-17-2009, 05:20 PM
  #5  
TECH Enthusiast
iTrader: (2)
 
Alvin's Avatar
 
Join Date: Dec 2005
Posts: 718
Likes: 0
Received 0 Likes on 0 Posts
Default

Having the base running airflow correct is the first thing you should worry about (if you haven't already). Once you have a good table (+/- 0.5 g/sec LTIT and STIT ) watch the LTIT gear/AC on when you turn the A/C on. If they start climbing way up the aforementioned tables in the torque management tab are not high enough.



Quick Reply: Stalls when A/C on in gear???



All times are GMT -5. The time now is 09:30 AM.