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11 January 2019 #1
- Join Date
- 07 Jan 2019
- Location
- Middletown, NY
- Posts
- 15
- Saab(s)
- 2001 9-5, 1999 9-3
How to: 3 Check Engine lights : Ignition Coil Knock,1-4;Camshaft Position Sensor
Hey Saab folks! I have a fine 2001 SAAB 9-5 wagon, 2.3t engine, but she can't pass our NYS inspection,in part because of 3 check engine problems:
PO340 Camshaft Position Sensor A, Bank 1 Circuit Malfunctiion
P1312 Ignition Coil Knock detection, Cylinders 1 and 2.
P1334 Ignition coil knock detection, Cylinders 3 and 4.
I am unclear if my friend and mechanic John can fix them; Have any of you all worked on any of these problems, and remember what you did? The Saaby is running well, maybe the MPG could be a little better, but she has power and sounds smooth.
Any ideas?
Thanks,
TunkLast edited by Tunk; 11 January 2019 at 20:13.
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11 January 2019 #2
Frank Administrator
- Join Date
- 30 Jul 2010
- Location
- USA - Netherlands
- Posts
- 7,901
- Saab(s)
- previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
P1312 and P1334 are classic signs of a DIC and spark plugs that need to be replaced.
i never had CPS problems before but I sounds like replacing the CPS is needed as well.
While the DIC is a bit pricey, the good news is that it is easy to replace yourself.
Many threads about these error codes already: https://www.google.com/search?q=P131...Asaabworld.net
Tutorial for replacing spark plugs and DIC: http://saabworld.net/showthread.php?t=25916
Make sure to use the correct NGK plugs for your engine.
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12 January 2019 #3
- Join Date
- 22 Jul 2018
- Location
- US PNW
- Posts
- 42
- Saab(s)
- 2001 9-5 5 door
Speaking with my "I get paid to fix cars" hat on -- I'd replace the spark plugs and clear the codes, then see what comes back -- there's a good chance you'll be in the clear. Saab is unique in using a resistance measurement through the coils to detect misfire. This makes Trionic very sensitive to spark plug condition. Trionic is also infamous for piggyback codes. The CPS code may be a complete ghost.
EDIT: I should say, Saab was a pioneer in using resistance measured through the coils to detect misfire. It's more common now, but in the early days of OBDII, block mounted knock sensors were the common method.
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12 January 2019 #4
Bruno Saab Addict
- Join Date
- 18 Nov 2016
- Location
- Cheeseland or TICTAC land
- Posts
- 603
- Saab(s)
- 9-5 ARC Wagon 2002 2 t auto engine B205E
PO340 Camshaft Position Sensor A, Bank 1 Circuit Malfunctiion is tied with coil pack failure when you've changed the pack this error will be vanishing...
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