Hello all! I’m currently having an issue with my 93 that the car tried to turn over but only starts when I give it some gas. I assumed that it was a fuel pump issue being that the Saab 93 is known to have issues with the fuel pump. I get a code that indicates that I have a misfire on cylinder number 4. I pulled out the spark plugs in which all are in good shape along with the coils. I did notice however that the spark plug in the 4th cylinder is damp with what appears to be gasoline. Could this be a fuel injector issue rather than a fuel pump? Maybe a combination of both? I cleaned the MAF in which seemed to help it a little bit. Any input on this situation is much appreciated! just trying to avoid a trip to the mechanic if possible!
You know you're old if when you see "Saab 93" you think of the one way back that had a 3-cylinder two-stroke "corn popper" engine! 😀
Starting in 2003 the Saab 9-3 used the GM Ecotec engine in 4-cylinder models. I haven't worked on one of those - does it have individual ignition coils? If so, maybe swap coils with another cylinder to see if the misfire (and wet spark plug issue) travels with the coil. (Earlier Saab engines used an ignition cassette where you could not change individual coils.)
Hi Chuck. Thanks for the response! So I haven’t swapped the coils but I did used a spark plug wire/ spark plug tester and when I turned the engine over I did have a full connection from the coil to the spark plug. It barely idles when at low RPM but when I have it sitting at 2-3k rpm it doesn’t shake and sputter. Also it does use the individual coils! Thanks!