Hi! I'm Bonneville 1993, 3.8 SCh owner from Moscow, Russia - 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.

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Old 01-27-2003, 09:09 AM   #1
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Default Hi! I'm Bonneville 1993, 3.8 SCh owner from Moscow, Russia

I'm very happy to find here Bonneville enthusiasts!
I hope we all have the information to exchange despite of here in Russia there are about 50pcs of Bonnevilles 1992-1995. First question for you - I have from time to time diagnostic trouble code 56 - Quad Driver Error. It seems this code is not obvious for diagnostic procedure. So please give me your feedback concirning the problem. As I understand, this QD line "B" control following solenoids - Boost control, EGR, TCC.
Thus we have the space for investigation.

Have a nice day.
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Old 01-27-2003, 09:53 AM   #2
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Wow! Russia! That'* a new record for the farthest member! The old record was set by a guy from Poland! Welcome to the club. As for your question:
code 56: Boost control solenoid
12353309 Boost Control Solenoid (Series I 3800, 91 -95)
1997244 Boost Control Solenoid (Series II 3800, 96 -03)

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Old 01-27-2003, 01:25 PM   #3
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That would be good if it was only the solonoid. Hope that'* it! The last time I heard of a quad driver error, it was a bad PCM. But that car wouldn't deliver fuel at all.

Welcome to the forum! You're actually our second member from there! I can't remember the other one, I'll look around and see if we can get you two together!
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Old 01-27-2003, 07:24 PM   #4
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Does the SES light come on mainly when you decelerate? Does your boost gauge ever go all of the way to +10 when you accelerate?
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Old 01-28-2003, 12:01 AM   #5
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Quote:
Originally Posted by DeathRat
Wow! Russia! That'* a new record for the farthest member! The old record was set by a guy from Poland! Welcome to the club. As for your question:
code 56: Boost control solenoid
12353309 Boost Control Solenoid (Series I 3800, 91 -95)
1997244 Boost Control Solenoid (Series II 3800, 96 -03)

I just looked in my 93 service manual. It says that 56 is the Quad-Driver "B" Fault. Are you possibly looking at a different source? Mine says that 57 is the Boost Control Problem.

This is not a very easy diagnostic. The PCM monitors the transmission, EGR, and the boost control solenoid. When it receives an incorrect signal from one of the above components, it sets 56. Do you have any symptoms, like bad shifting, or poor drivability?
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Old 01-28-2003, 03:03 AM   #6
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Default I'm very happy to meet here such a large support!! (+)

As for my problem.
SES lights on when I decelerate only. It happans couple of days after I've replaced supercharger by Paxton rebuild one. There are no problems with driving at all like bad driving, shifting, nothing. Only SES from time to time. Our services seems not to be happy to see the code appearing from time to time. So I hope together we will manage to fix a problem.
Good withes from Russia!
Vitaly
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Old 01-28-2003, 09:07 AM   #7
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OK, I think DeathRat has the right solution. I've heard of this before. Sounds like a boost control solenoid. Do you get a max boost of only about +5?

I'll check a few other places.
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Old 01-28-2003, 09:50 AM   #8
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Quote:
Originally Posted by fuddyduddy121
Quote:
Originally Posted by DeathRat
Wow! Russia! That'* a new record for the farthest member! The old record was set by a guy from Poland! Welcome to the club. As for your question:
code 56: Boost control solenoid
12353309 Boost Control Solenoid (Series I 3800, 91 -95)
1997244 Boost Control Solenoid (Series II 3800, 96 -03)

I just looked in my 93 service manual. It says that 56 is the Quad-Driver "B" Fault. Are you possibly looking at a different source? Mine says that 57 is the Boost Control Problem.

This is not a very easy diagnostic. The PCM monitors the transmission, EGR, and the boost control solenoid. When it receives an incorrect signal from one of the above components, it sets 56. Do you have any symptoms, like bad shifting, or poor drivability?
My manuals (paper & CD) do not list any Code:57? Just this one.
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Old 01-28-2003, 02:23 PM   #9
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As my memory serves me correctly, here is your problem. Check to see that your symptoms match. I cannot get the e-mail to paste in correctly, so it does repeat a few times.

Let us know what you think.

-------------------------
-----Original Message-----
From: John Hugentober [mailto:[email protected]]
Sent: Sunday, December 16, 2001 9:06 PM
To: [email protected]
Subject: SSEi SES Intermittent Code 56

The "Service Engine Soon" light has been coming on intermittently on our
'93
SSEi for the past 5K miles and I haven't been able to decode it in any
reference book. The SES light comes up only on deceleration and then
goes
back out after accelerating again. I was told that my EGR valve was
probably
clogged, so I disassembled it and cleaned the valves thoroughly. The
wires
and plugs aren't very old and I recently replaced the O2 sensor after
reading that in a past post. I can clear the codes and after the first
intermittent SES light, a code 56 will be stored again. Any help is
appreciated.

John



When you step on the gas does your boost stop at about 4-5 psi and not
go all the way to about 8-10? I had a problem with the Boost Control
Solenoid and I think I got the same code, my boost would not max out at
all.

Code 56 has to do with either the Boost Control Solenoid or the EGR
valve.

> >
> > Craig,
> > Man, it sure does only go to about 4 PSI...! I noticed this and
> > thought
> > that it was an unrelated problem. I meant to mention it in my
> original
> > post, though.... What did you do to fix yours? Replace the
> solenoid,
> > clean it or ...? Do you remember if it was expensive?
> >
> > Thanks,
> > John
> >


> > I repla
'93
SSEi for the past 5K miles and I haven't been able to decode it in any
reference book. The SES light comes up only on deceleration and then
goes
back out after accelerating again. I was told that my EGR valve was
probably
clogged, so I disassembled it and cleaned the valves thoroughly. The
wires
and plugs aren't very old and I recently replaced the O2 sensor after
reading that in a past post. I can clear the codes and after the first
intermittent SES light, a code 56 will be stored again. Any help is
appreciated.

John



When you step on the gas does your boost stop at about 4-5 psi and not
go all the way to about 8-10? I had a problem with the Boost Control
Solenoid and I think I got the same code, my boost would not max out at
all.

Code 56 has to do with either the Boost Control Solenoid or the EGR
valve.

> >
> > Craig,
> > Man, it sure does only go to about 4 PSI...! I noticed this and
> > thought
> > that it was an unrelated problem. I meant to mention it in my
> original
> > post, though.... What did you do to fix yours? Replace the
> solenoid,
> > clean it or ...? Do you remember if it was expensive?
> >
> > Thanks,
> > John
> >


> > I replaced it and it was only about $20. When you go to the dealer,
> > tell them you need the boost control solenoid kit. It really isn't a
> > kit but that is what it is called. The solenoid sits under the plasic
> > "3800 SUPERCHARGED" housing and is really simple to replace.
> >

> Thanks Craig.
>
> I went up to the dealer today and ordered the kit for ~$21. I am pretty
> sure that I got the right thing and hope to be installing it this
> weekend.
>
> Thanks again,
> John

Craig and everyone else....

I installed the Boost Control Solenoid which was very simple and I
immediately noticed that the SES light no longer came on. A test drive
around the block proved that 10+ PSI boost was restored. Big thanks to
Craig for the correct diagnosis. For everyone else, if you have noticed
your boost being limited to < 5psig when you get on it, you might consider
replacing this solenoid. It cost me $21 at the dealer and it made huge
improvement in performance. This is on a series I SC and I don't know if it
applies to Series II. When I bought the part, it had an AC Delco box
inside the GM box, so here are the p/ns for each:

AC Delco: 01997217
GM: 12353309 3.342

John
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Old 03-17-2010, 04:36 PM   #10
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Default 12353309 obsolete

1995 Bonneville supercharged boost control solenoid is bad. Part no. is 12353309 and is obsolete from GM can I use the 1997244 from later model ? Thanks Rich
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