SaturnFans.com
saturnfans.com - classifieds - forums - webmail


Go Back   SaturnFans.com Forums > Models > Saturn S-Series > S-Series Mods

Reply
 
Thread Tools Display Modes
Old 08-03-2018, 02:39 AM   #1
Jonasan308
Advanced Member
Jonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of light
 
Jonasan308's Avatar
 
Join Date: May 2016
Location: Northeast ohio
Posts: 747
 

1999 SC1
Default Question about MP3 transmission swap

If i swap a SX2 manual transmission into my automatic equipped 99 SC1, will i need the PCM for the SX1 or SX2? and are there any specific issues i may have with it?
...
1999 SL1-129k at purchase(may 2016)-139k when wrecked(September 2016)
1999 SC1-156K at purchase(oct 2016)-215k(Oct 2019)
1996 SL2-116k- (oct 2019)
Dodging potholes should be a sport
Jonasan308 is offline   Reply With Quote
SaturnFans.com Sponsored Links
Old 08-03-2018, 07:10 PM   #2
OldNuc
Super Member
OldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond repute
 
Join Date: Apr 2008
Location: Far Southwestern Iowa
Posts: 66,693
 

1998 SC2
Default Re: Question about MP3 transmission swap

Generally the auto trans PCM in the car now is used with all the TRS fuses pulled and the auto trans codes ignored. If you want to do it right you need a SOHC manual PCM. Either way cruise will not function.
OldNuc is offline   Reply With Quote
Old 08-04-2018, 06:21 PM   #3
Jonasan308
Advanced Member
Jonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of light
 
Jonasan308's Avatar
 
Join Date: May 2016
Location: Northeast ohio
Posts: 747
 

1999 SC1
Default Re: Question about MP3 transmission swap

Im fine with loosing cruise, as i dont use it anyways. The SOHC pcm will run the DOHC transmission/SOHC engine combination just fine? With no codes thrown?
...
1999 SL1-129k at purchase(may 2016)-139k when wrecked(September 2016)
1999 SC1-156K at purchase(oct 2016)-215k(Oct 2019)
1996 SL2-116k- (oct 2019)
Dodging potholes should be a sport
Jonasan308 is offline   Reply With Quote
Old 08-04-2018, 07:39 PM   #4
Zeebins
Advanced Member
Zeebins is a splendid one to beholdZeebins is a splendid one to beholdZeebins is a splendid one to beholdZeebins is a splendid one to beholdZeebins is a splendid one to beholdZeebins is a splendid one to beholdZeebins is a splendid one to behold
 
Zeebins's Avatar
 
Join Date: Jun 2017
Location: Massachusetts
Posts: 988
 

1997 SL2
Default Re: Question about MP3 transmission swap

If you use a manual transmission with an auto pcm everything will work fine but I believe you will get a permanent check engine light due to the computer not being able to shift
...
97 SL2, auto, 118K miles
Zeebins is offline   Reply With Quote
Old 08-05-2018, 07:36 AM   #5
Saturn Night
Master Member
Saturn Night is just really niceSaturn Night is just really niceSaturn Night is just really niceSaturn Night is just really nice
 
Join Date: Aug 2016
Location: Leavittsburg, OH
Posts: 3,389

1995 SC2
Default Re: Question about MP3 transmission swap

The auto PCM will cause issues, when it cuts fuel to command a shift, in a car running the manual transmission. With a 1999, get a manual PCM. OBD-II programming can run either SOHC/DOHC engines, so only real difference is the transmission.

Depending on your county, the SES will auto fail your e-check inspections. And I believe there are some wires you will need to splice. Fetch posted photos of it a while back, when he did a manual swap, I think.
...
"What does a Saturn owner do, at the gas station?"

"He checks the gas, and fills the oil....."
Saturn Night is offline   Reply With Quote
Old 08-05-2018, 02:56 PM   #6
OldNuc
Super Member
OldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond reputeOldNuc has a reputation beyond repute
 
Join Date: Apr 2008
Location: Far Southwestern Iowa
Posts: 66,693
 

1998 SC2
Default Re: Question about MP3 transmission swap

The auto TCU will promptly fail to manual valve operation and cause absolutely nothing except a per manat SES light.
OldNuc is offline   Reply With Quote
Old 08-05-2018, 03:06 PM   #7
Jonasan308
Advanced Member
Jonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of lightJonasan308 is a glorious beacon of light
 
Jonasan308's Avatar
 
Join Date: May 2016
Location: Northeast ohio
Posts: 747
 

1999 SC1
Default Re: Question about MP3 transmission swap

So if i toss in a manual SOHC PCM with the DOHC transmission, it wont care about the shorter gear ratios or set off lights?
...
1999 SL1-129k at purchase(may 2016)-139k when wrecked(September 2016)
1999 SC1-156K at purchase(oct 2016)-215k(Oct 2019)
1996 SL2-116k- (oct 2019)
Dodging potholes should be a sport
Jonasan308 is offline   Reply With Quote
Old 08-06-2018, 03:17 PM   #8
Saturn Night
Master Member
Saturn Night is just really niceSaturn Night is just really niceSaturn Night is just really niceSaturn Night is just really nice
 
Join Date: Aug 2016
Location: Leavittsburg, OH
Posts: 3,389

1995 SC2
Default Re: Question about MP3 transmission swap

Quote:
Originally Posted by Jonasan308 View Post
So if i toss in a manual SOHC PCM with the DOHC transmission, it wont care about the shorter gear ratios or set off lights?
Correct. Manual PCM will run either manual transmission. For 1999, the only difference is auto/manual PCMs. A SOHC Auto PCM will run a DOHC engine and MP6 transmission.

Manuals don't throw codes for incorrect ratios.
...
"What does a Saturn owner do, at the gas station?"

"He checks the gas, and fills the oil....."
Saturn Night is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Question: Transmission swap Suspenders Vue Tech 11 02-26-2014 11:07 PM
transmission swap question solarcar_sc1 S-Series Tech 6 03-13-2012 06:37 PM
Transmission swap question...please help!!! donrob42 S-Series Tech 4 07-08-2011 11:02 AM
transmission swap application question hrtatack1 S-Series Tech 8 05-23-2008 01:56 PM
Transmission Swap Question QuickSilverSC2 S-Series Mods 34 04-07-2003 09:49 AM


All times are GMT -4. The time now is 03:32 AM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
SaturnFans.com. The Saturn Enthusiasts Site.