Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Should I reset the PCM after a cam install?

Thread Tools
 
Search this Thread
 
Old 07-01-2005, 10:28 PM
  #1  
TECH Apprentice
Thread Starter
 
ACCELR8's Avatar
 
Join Date: Feb 2002
Location: Brook Park, Ohio
Posts: 363
Likes: 0
Received 0 Likes on 0 Posts

Default Should I reset the PCM after a cam install?

I just installed an F11 cam and an LS6 intake. I'll be starting the car tomorrow. Should I reset my PCM? I don't plan to get a tune for a couple of months.

Thanks,

Jim
Old 07-01-2005, 11:13 PM
  #2  
TECH Junkie
 
Mike K.'s Avatar
 
Join Date: Dec 2001
Location: Lakeland, FL
Posts: 3,242
Likes: 0
Received 0 Likes on 0 Posts

Default

I would just to force an idle relearn.
Old 07-02-2005, 12:42 PM
  #3  
TECH Apprentice
Thread Starter
 
ACCELR8's Avatar
 
Join Date: Feb 2002
Location: Brook Park, Ohio
Posts: 363
Likes: 0
Received 0 Likes on 0 Posts

Default

Thanks!
Old 07-02-2005, 02:32 PM
  #4  
TECH Addict
 
Predator's Avatar
 
Join Date: Jun 2002
Location: Las Vegas, NV
Posts: 2,428
Likes: 0
Received 0 Likes on 0 Posts

Default

Didn't you disconnect the battery before installing the cam? If not I'd go for the idle relearn too as Mike said.
Old 07-02-2005, 05:03 PM
  #5  
Staging Lane
 
Corupted's Avatar
 
Join Date: Mar 2005
Posts: 69
Likes: 0
Received 0 Likes on 0 Posts
Default

Yep another vote on idle relearn!
Old 07-03-2005, 09:52 AM
  #6  
Dumb Ass Vette Moderator
iTrader: (20)
 
ls1290's Avatar
 
Join Date: Jun 2002
Location: Colorado
Posts: 4,279
Likes: 0
Received 1 Like on 1 Post

Default

Also do the PCM relearn procedure:

1) Turn key to on for 30 seconds
2) Turn key to off for 11 seconds
3) Turn key to on for 30 seconds
4) Turn key to off for 11 seconds
5) Turn key to on for 30 seconds
6) Turn key to off for 11 seconds
7) Turn key to on for 30 seconds
8) Turn key to off for 11 seconds
9) Turn key to on for 30 seconds

Keith
Old 07-04-2005, 12:07 PM
  #7  
TECH Senior Member
iTrader: (24)
 
Reject's Avatar
 
Join Date: Apr 2005
Location: Texas
Posts: 9,197
Received 4 Likes on 3 Posts

Default

Originally Posted by ls1290
Also do the PCM relearn procedure:

1) Turn key to on for 30 seconds
2) Turn key to off for 11 seconds
3) Turn key to on for 30 seconds
4) Turn key to off for 11 seconds
5) Turn key to on for 30 seconds
6) Turn key to off for 11 seconds
7) Turn key to on for 30 seconds
8) Turn key to off for 11 seconds
9) Turn key to on for 30 seconds

Keith
Great I was looking for the reset sequence, saved my butt on this one! Thanks!!
Old 07-05-2005, 08:07 AM
  #8  
Dumb Ass Vette Moderator
iTrader: (20)
 
ls1290's Avatar
 
Join Date: Jun 2002
Location: Colorado
Posts: 4,279
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by sycotic_reject
Great I was looking for the reset sequence, saved my butt on this one! Thanks!!
No problem. Someone else saved mine, so I am glad I could pass it along

Keith
Old 07-05-2005, 08:37 AM
  #9  
TECH Senior Member
iTrader: (10)
 
cyphur's Avatar
 
Join Date: Mar 2003
Location: North Texas
Posts: 8,009
Likes: 0
Received 0 Likes on 0 Posts
Default

Eh, real simple way to reset is to disconnect the battery for 15-20 minutes. The pcm shouldn't retain a damn thing after that, and have to relearn everything. Hence why since most people disconnect the battery for a cam install, they don't have to worry about it
Old 07-05-2005, 09:25 AM
  #10  
Dumb Ass Vette Moderator
iTrader: (20)
 
ls1290's Avatar
 
Join Date: Jun 2002
Location: Colorado
Posts: 4,279
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by cyphur_traq
Eh, real simple way to reset is to disconnect the battery for 15-20 minutes. The pcm shouldn't retain a damn thing after that, and have to relearn everything.
That is not entirely true. The PCM does retain some info in flash memory that will not be affected by power loss. Doing the PCM relearn procedure will clear that info.

Keith
Old 07-05-2005, 08:32 PM
  #11  
TECH Senior Member
iTrader: (18)
 
DONAIMIAN's Avatar
 
Join Date: Jun 2002
Location: NW Houston, TX
Posts: 10,036
Likes: 0
Received 0 Likes on 0 Posts

Default

Ive never heard of PCM relearn. I plan on going bigger with my cam before the summers end and will the PCM relearn erase my tune becasue I wont be able to get a new one right away.
Old 07-05-2005, 11:12 PM
  #12  
TECH Veteran
iTrader: (8)
 
ss rally red's Avatar
 
Join Date: Jan 2002
Location: Destin FL
Posts: 4,298
Likes: 0
Received 0 Likes on 0 Posts

Default

Good luck with that without a tune. You didn't mention if it was on a 112 or 114,my assumption is a 112 and if thats the case dont plan on running the AC much this summer cause the stock tune is going to have the IAC count all over the place.
Old 07-06-2005, 07:43 AM
  #13  
Teching In
 
Mikriman's Avatar
 
Join Date: Jul 2003
Location: Houston
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Default

Question: Does doing the PCM relearn procedure clear out everything including a Tune? So if the O2"s/EGR was cleared during a Tune--would this bring back the codes?
Old 07-06-2005, 11:36 AM
  #14  
FormerVendor
iTrader: (33)
 
Nasty N8's Avatar
 
Join Date: Feb 2002
Location: Lake in the Hills, IL
Posts: 5,052
Likes: 0
Received 0 Likes on 0 Posts

Default

No no PCM relearn will clear a tune what is in the tune will stay there.

Nate
Old 07-06-2005, 12:17 PM
  #15  
Banned
iTrader: (92)
 
~JOSHUA's Avatar
 
Join Date: Sep 2004
Location: Atlanta
Posts: 7,757
Likes: 0
Received 0 Likes on 0 Posts
Default

I went from a 220/224 114 cam to a 236/236/112. I have the Crane tuner for now until I can get a dyno tune. Should my programmer take care of all this or should I put it back to stock tune,then do the reset procedure, then retune with the programmer? I didn't disconnect the battery before the install. My transmission gave out 10 miles after the install so I havn't driven it for a week to say much abut the cam. It will sit in my garage till I can tear my tranny out. Opinions on tune?
Old 07-06-2005, 01:05 PM
  #16  
On The Tree
 
TARA02's Avatar
 
Join Date: Jan 2003
Location: Canton, NC
Posts: 124
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by ss rally red
Good luck with that without a tune. You didn't mention if it was on a 112 or 114,my assumption is a 112 and if thats the case dont plan on running the AC much this summer cause the stock tune is going to have the IAC count all over the place.
Tell me about it! Every time I try to use the a/c, my car dies on me at low idle. And sometimes w/o the a/c. Have a new tune ready, but haven't had a chance to have it done yet. Hopefully this week. I also have this wierd noise (which probably has nothing to do w/the cam), but thought I'd ask -- please don't get mad -- don't mean to take over the thread by any means!

While driving the car, I can hear a sound that resembles that of a drill. It lasts anywhere from approximatley 3 - 5 seconds. It's not a loud noise -- can't hear it if the radio is on and can hear it better from the driver's side. Any suggestions?
Old 11-12-2005, 11:02 PM
  #17  
TECH Regular
iTrader: (6)
 
Black_Bird's Avatar
 
Join Date: Jul 2005
Location: Chattanooga, TN
Posts: 458
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by TARA02
While driving the car, I can hear a sound that resembles that of a drill. It lasts anywhere from approximatley 3 - 5 seconds. It's not a loud noise -- can't hear it if the radio is on and can hear it better from the driver's side. Any suggestions?

AIR!......



Quick Reply: Should I reset the PCM after a cam install?



All times are GMT -5. The time now is 12:16 PM.