Saab 9-5 Griffin 3.0 V6t misfiring

[alexT]

Hi, I bought this Griffin two days ago and it was running fine until yesterday when it started to misfire when engine is warm. No CEL or nothing, sometimes more sometimes less. OBD2 didn't read any fault codes, tested both DICs and both seem to work, also changed the crankshaft position sensor as I saw on another forum that it could be the issue. After changing it, it ran good for like 10km until engine warmed up and now is running poorly again... What else should I check before I go and buy new DICs

Thanks in advance

[GeoffR]

Try changing the spark plugs, cheaper than DI Cassettes and easier to find. I bought a 2.3 Aero a few years back and it wouldn't run right, one of the plugs was loose so I replaced all four and it was fine after that.

[alexT]

Try changing the spark plugs, cheaper than DI Cassettes and easier to find. I bought a 2.3 Aero a few years back and it wouldn't run right, one of the plugs was loose so I replaced all four and it was fine after that.

Oh sorry forgot to mention that we did check the plugs and they seemed fine but might have to change them just to see. I don't think it's the plugs because of how bad the misfiring issue is. Although the plugs are 5€ a piece so cheap enough to rule out that issue.