Question about 2003 Saab 9-3

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Check engine light on reading these codes. P1312, p1334, p0116, p0705, p0340

Convertible Approx 100 miles

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

Molson02536
  • 3854 Answers

SOURCE: Hi, I have a 2000 Saab 93. The engine light is on.

P1312 is ignition coil knock detection cyl 1 and 2 and the cause is quoted as wiring open circuit/short to positive, ignition coil assy, ECM.
P1334 is as 1312, but cylinders 3 and 4.

The other thing to that would cause detonation too is low fuel octane causing detonation during acceleration. Or dirty fuel injector and dirty fuel filter. Timing would cause this but i don't think your timing is off since you can get it started. Recap, add fuel injector cleaner to your gas tank for the next 3 fill ups and try using a higher octane rated fuel like 91 and replace the fuel filter for now and see if there are any improvments. keep me posted, be glad to help.

Posted on Jun 25, 2009

  • 14036 Answers

SOURCE: just had obd2 readding as eml comes on

CODE P1312 -COMBUSTION DETECTION CYLINDER 1 2 OPEN CIRCUIT SHORT TO B+ POSSIBLE CAUSE -CHECK OUT PUT SIGNAL FROM CONTROL MODULE- CHECK FOR POOR CONTACT IN CONTROL MODULE CONNECTOR- CHECK HARNESS BETWEEN MODULE AND CONTROL MODULE. CODE P1334 -COMBUSTION DETECTION CYLINDER 3 / 4 OPEN CIRCUIT SHORT TO B+.YOUR POSSIBLE CAUSE IS THE SAME AS P1312.

Posted on Jul 26, 2009

countrybo331
  • 79 Answers

SOURCE: got Check engine light code P 0442. saab 93 2004 73k Miles

P0442 Evaporative Emission Control System Leak Detected (small leak)....this actually should not cost that much...its more then likley a leak on 1 of your hoses...if u take it to the dealler the parts and stuff is more expensive...but if u take it to the mechanic shop then they are more then likley goin to tell you u need stuff that u really dnt in it probally in hte long run cost you more there....but its up 2 u...any more questions feel free to ask...hope this helps

Posted on Apr 02, 2010

Testimonial: "Thanks for advice. I have long trip planned approx 1000 miles. Can this wait or should I have it rectified before I start for the trip."

countrybo331
  • 79 Answers

SOURCE: Code P 0442. Can I take a trip of 1000 miles

u can... it aint hurtting nothing exept you may be getting a little bit less gas millage...hope this helps

Posted on Apr 02, 2010

Testimonial: "Thanks for very succinct & prompt response."

tgv1501
  • 870 Answers

SOURCE: got a check engine light on with OBD2 reading

P1312. I think its the DERECT IGNITION CASSETTE. and it cost like $200 At the dealership. Good luck

Posted on Dec 07, 2010

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I have a saab 93 2002 with engine codes,p1110,p1312 and p1334 showing can anyone please tell me what they mean!


CODES P1312 AND P1334 These codes are related to the DI Module. Check the DI Module. Replace it if needed and clear the codes.

CODES P1110 Code P1110 is related to the Turbo Bypass Valve, check the vacuum lines at the Bypass Valve and especially at a vacuum sensor mounted on the firewall driver's side. The lines become loose with age and will pop off or can become disconnected when someone is reaching behind the for other reasons.

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Code error p0340


Hi there:
DTC P0340 - CMP (Camsahft Position) Sensor Circuit Malfunction

CHeck details HERE.

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2006 Cobalt 2.2 litre has check engine light come on, then "engine disabled"


That code dsoesn't 100% mean the sensor is defective, other factors can set it. See list below.
Possible causes- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
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While driving noticed check engine light ,slip,and ect light on dash came on proceeded my journey , when i started up the car again it took several cranks before starting. Next day drove about half a mile...


the bank#1 cam position sensor has failed.this is located in the back of the cyl. head closest to fire wall.takes several attempts to start because lack of signal puts ecm in fail safe mode and it substitutes a value to get engine started.about a$100 for sensor and half hour to put it in.

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Got a check engine light on with OBD2 reading P1312 have no idea what it is?


P1312. I think its the DERECT IGNITION CASSETTE. and it cost like $200 At the dealership. Good luck

Dec 07, 2010 | 2003 Saab 9-3

2 Answers

2001 Isuzu Rodeo 4WD. CHeck Engine light on and


After market spark plugs could be the problem.
Reinstall the old plugs and see if that fixes it.
This vehicle has an ion sensing ignition system and is real sensitive to the proper spark plugs. I would get the proper plugs from the dealer if the old ones work.
The codes P1311 and P1312 are ion sensing codes.

Sep 23, 2009 | 2001 Isuzu Rodeo

1 Answer

Just had obd2 readding as eml comes on intermitantly codes p1312and p1334 what do they mean please


CODE P1312 -COMBUSTION DETECTION CYLINDER 1 2 OPEN CIRCUIT SHORT TO B+ POSSIBLE CAUSE -CHECK OUT PUT SIGNAL FROM CONTROL MODULE- CHECK FOR POOR CONTACT IN CONTROL MODULE CONNECTOR- CHECK HARNESS BETWEEN MODULE AND CONTROL MODULE. CODE P1334 -COMBUSTION DETECTION CYLINDER 3 / 4 OPEN CIRCUIT SHORT TO B+.YOUR POSSIBLE CAUSE IS THE SAME AS P1312.

Jul 26, 2009 | Saab 9 3 Cars & Trucks

2 Answers

Hi, I have a 2000 Saab 93. The engine light is on. I took it to have the codes read and they came up with two,p1334 and p1312. They said they were dealer codes so they could not tell me the problem . They...


P1312 is ignition coil knock detection cyl 1 and 2 and the cause is quoted as wiring open circuit/short to positive, ignition coil assy, ECM.
P1334 is as 1312, but cylinders 3 and 4.

The other thing to that would cause detonation too is low fuel octane causing detonation during acceleration. Or dirty fuel injector and dirty fuel filter. Timing would cause this but i don't think your timing is off since you can get it started. Recap, add fuel injector cleaner to your gas tank for the next 3 fill ups and try using a higher octane rated fuel like 91 and replace the fuel filter for now and see if there are any improvments. keep me posted, be glad to help.

Jun 25, 2009 | 2000 Saab 9-3 Viggen

1 Answer

Check engine lite is on:1997 volvo 960 p0705 transmission code


Just because your Check Engine light came on doesn't mean there's something wrong at all. Various Mechanical functions are timed by the Manufacture to signify Servicing required.

Sometimes they're set at 50K miles or more, when the light starts going on, all you have to do is take it to an Authorized Service Shop and they Reset the timer. Most places won't even charge you for doing it unless they find something wrong.


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