Hello all, I just signed up for this site as I recently bought a used 2001 Saab 9-5 with 80K miles on it from a dealer.
The reocurring issue is that the check engine light continues to come on reading codes p1312 and p1334 which are misfires in cylinders 1 & 2, 3 & 4 respectively.
The dealer who has promised us the fix continues to replace the Direct Ignition Coil, saying that is what the codes are pointing to; however, after 3 replacements, it continues to do this....I have heard of a possible vapor locking condition, or maybe the ECM....can anyone offer some insight as to what is going on?

 

make him change the spark plugs to OEM plugs. Make sure it's none of that platinum stuff and that you actually have OEM plugs.

 

I just read my post and completely forgot to detail the "symptoms" of the car!
Sorry lol....well what it does is that some undetermined time after the light comes on it will be on the freeway going at a reasonable speed when it begins to yank forward abruptly and around the same time it will lose all accelerating power, the more one tries to accelerate, the more it seems like the accelerator is not being pressed.
Slowly the car will lose speed, and it will die before it comes to a stop.
At this point one of two things will happen; the car cannot be started, or after three or four tries it will start as if nothing happens.
Mind you that when it is losing power the engine light flashes or comes on and usually stays on.
Sorry for accidentally withholding this bit of info it was four in the morning here when i wrote the previous post, lol.

EDIT: The p1312 and p1334 codes are gone, and have now changed to p1181; however, the behavior of the car is the same when it decides to act up

 

I have an '02 9-5 Aero, 4 cylinder. In regards to the OEM spark plugs, which are the correct ones to use? I've been told a few different types.
Is NGK PFR6H-10 the correct OEM spark plug?

In addition, should I be concerned if there was a small amount of oil where the plug screws into? I found oil residue on the end of my spark plug socket.

Thank you for your help

 

i just purchased a 2003 93 convertible and my engine light and transmission lights keep going on and off. Had the diagnostic reading done which presented codes P1334 and P1312, and I have had my spark plugs changed at least the shop was suppose to have changed them.

Help Please very frustrated..

Thanks

 

Slowly the car will lose speed, and it will die before it comes to a stop.
At this point one of two things will happen; the car cannot be started, or after three or four tries it will start as if nothing happens. Mind you that when it is losing power the engine light flashes or comes on and usually stays on. Sorry for accidentally withholding this bit of info it was four in the morning here when i wrote the previous post, lol.
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