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#1
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Missfiring SL1 (97)
If nothing else they sure have character. I have been struggling with
a miss fire for several weeks now. I had some luck when I replaced the plug wires and used the "recommended" plugs but that only lasted 3 months (last winter). Now I put the bosch platinum plugs back in. Interesting, when I put a strobe on the plug wires, the shortest wire would intermitently light up the strobe. So I put an old longer plug wire in and it would light the strobe steadily. Well that lasted a day and now my car is missfiring again. It seems okay at hyway speeds and under hard acceleration but jerks and stumbles a lot 40-65 kmph under light throttle. I went through hundreds or thousands of messages on this board last winter which pointed to the wires and plugs. I am thinking of upgrading the wires and coils but hate to spend money if its not gonna do the job. OBD11 code PO341 (which I know the car does not have this part)keeps coming up. Dave D. |
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#2
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I've had the same sort of problems when I first got mine - first try
replacing the fuel filter. Sort of simple, but it fixed mine. Second, get the fuel pump tested. Chris "David De Vuono" > wrote in message om... > If nothing else they sure have character. I have been struggling with > a miss fire for several weeks now. I had some luck when I replaced > the plug wires and used the "recommended" plugs but that only lasted 3 > months (last winter). Now I put the bosch platinum plugs back in. > Interesting, when I put a strobe on the plug wires, the shortest wire > would intermitently light up the strobe. So I put an old longer plug > wire in and it would light the strobe steadily. Well that lasted a > day and now my car is missfiring again. It seems okay at hyway speeds > and under hard acceleration but jerks and stumbles a lot 40-65 kmph > under light throttle. I went through hundreds or thousands of messages > on this board last winter which pointed to the wires and plugs. I am > thinking of upgrading the wires and coils but hate to spend money if > its not gonna do the job. OBD11 code PO341 (which I know the car does > not have this part)keeps coming up. > > Dave D. |
#3
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Check that you have the plug wires routed just right. IIRC, there's
something about OBDII Saturns that makes them touchy about the wire type and routing, and if it's not perfect, they do weird things. Before going for the ignition and coils, you might want to try pulling out the crank sensor and cleaning any junk/chips off it, or see if it's flakey. |
#4
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