Error Code P1670 QDM questions - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-26-2010, 03:27 PM   #11
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2010
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
cspoonts is on a distinguished road
Default

So what do you think the issue with the transmission is?

The tech gave me the printout for P1670 so I know he thinks that is the correct code. He said since the transmission is on the QDM if one of the quad driver circuits is having a problem it basically causes problems in the whole system. Doesn't make any sense to me but I have never worked on any of the GM cars with QDM.
cspoonts is offline   Reply With Quote
Old 01-26-2010, 03:29 PM   #12
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2010
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
cspoonts is on a distinguished road
Default

By the way I really appreciate you guys help on this. Thanks so much!! I look forward to figuring this all out and am confident with your help I will.
cspoonts is offline   Reply With Quote
Old 01-26-2010, 03:42 PM   #13
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,647
Thanked 999 Times in 775 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

We are here to help!!

Billboost and SGP350 are our resident trans experts.

If the QDM truely did fail, then you may be needing a new PCM. But we'll put that on the back burner for now until Bill comes back in.

If you could, please put your year and trim level in your signature. Its' going to be needed later on when they come back in.
Mike is offline   Reply With Quote
Old 01-26-2010, 03:46 PM   #14
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

A QDM fault is typically caused by one of the items failing on the circuit that feeds. Meaning that usually the pcm is ok.

If no one with a 95ish pcm comes forward fisrt and confirms the trans is on #4 then I don't remember it being there..and I'll check when I get hom. If it'* on #4 then it'll be interesting to see what part is. I'd suspect maybe a soleniod etc.

Unfortunately if that'* the case..the problem is probably in the trans. If the trans isn't on #4 then the problem is still in the trans.
BillBoost37 is offline   Reply With Quote
Old 01-27-2010, 10:06 AM   #15
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2010
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
cspoonts is on a distinguished road
Default

So anyone able to chime in on if the trans is at all associated with the QDM #4 circuit like the mechanic is saying?
cspoonts is offline   Reply With Quote
Old 01-27-2010, 10:24 AM   #16
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

I did a little poking around and bad ECM came up a few times. 94s have a flaky ECM. It'* possible the ECM/PCM flaked out. Bill, what'* your thoughts on that?
Danthurs is offline   Reply With Quote
Old 01-27-2010, 10:34 AM   #17
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,647
Thanked 999 Times in 775 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Quote:
Originally Posted by BillBoost37 View Post
If no one with a 95ish pcm comes forward fisrt and confirms the trans is on #4 then I don't remember it being there..and I'll check when I get hom. If it'* on #4 then it'll be interesting to see what part is. I'd suspect maybe a soleniod etc.
And how does one go about doing that Bill?
Mike is offline   Reply With Quote
Old 01-27-2010, 10:51 AM   #18
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

I forgot to look last night. Anyone have a 94/95 FSM and can look up the code. There'* 3-4 things controlled by each quad driver. If the trans isn't on any of them, then it'* likely something in the trans.

The pcm is flaky in these years. Not usually for codes though. If you have a code, there'* usually a reason. On my old 95 everything worked great and I got a quad code. One of the soleniods was the BCS, while it was working 100% correctly..replacing it fixed the issue.
BillBoost37 is offline   Reply With Quote
Old 01-27-2010, 03:19 PM   #19
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2010
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
cspoonts is on a distinguished road
Default

Okay so here is what I have found out. The transmission is on that same circuit. It is not throwing any transmission codes so for now there is no reason to think that the transmission is in any way bad. So from what I have learned I dont know all the things on that circuit but I know there is more than just the ac clutch and cooling fans. So I need help to find out what else is on this circuit so I can find the faulty component.
cspoonts is offline   Reply With Quote
Old 01-27-2010, 03:22 PM   #20
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

How do you know the Trans is on that driver? I'll be home in about an hour and should be able to look it up. But I don't believe the trans is on a quad driver.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
p1640 QDM 1 error....any ideas? ECM has been swapped already MileHighSSEi 1992-1999 1 05-20-2008 08:14 PM
QDM 4 Error SPOILEDRED94 1992-1999 3 01-16-2008 01:50 AM
p1640 p1670 error codes smfuller 1992-1999 1 12-18-2007 08:02 PM
Code 26 QDM opensourceguy 1987-1991 6 12-06-2006 06:42 PM
Code 26? QDM Error? WTF DrCheeto Oldsmobile 1 10-11-2006 09:56 AM


Tags
p1670, qdm 4, quad driver module

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:34 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.