Ok so I decided to start stage 0 on my 98 s70 t5 and before I started I never had any problems but now after replacing spark plugs and spark plug wires I keep getting check engine light and the codes are for number 2 cylinder misfire and number 5 cylinder misfire. Why is this? The spark plugs I used are Ngk iridium, and the wires are some high performance 8.5mm I got online. I tried putting the old spark ug wires on and it still did the codes even though it never did before on the old wires. So I decided to go ahead and change the cap and rotor which didn't stop the codes either, do I need to take the spark ugs back out? Why do I do??????