Fear88

My s2 has decided to misfire on idlle no problems up the rev range or vtec just whenn stood stilll I had it put on the etho and it come up with missfire cylinder 1 so I changed the coil packs around but stil chukin that code up I've changed the plugs. Oil. Air filter but no change also the engine is very tapity. any ideas thanks

s2k-tilldeath

Get a valve adjustment.

TonysMI4

^ this will fix it

Fear88

done the adjustment today and still no change in noise or missfire. i also did a compression test but all seems gd

4forall

Did you do the adjustment yourself? Were any of them way too tight or loose? Have you done an adjustment on an s2k prior to this?

I only ask because with the roller system the s2k engine has it has an entirely different feeling from say B series valve adjustments. If it is your first time i would just have someone who has done them multiple times on an s2k double check.

I saw a post yesterday where a guy did .010 on intake and exhuast side insead of the .008 in .010 ex that is correct.

Also when you swapped the coil did you just swap it with cyl #2? If so did the misfire follow the coil to cyl #2 or was it still cyl #1 after the swap?

If the code follows the coil then its fair to say the coil may have a hairline crack or is just worn out. If not i would get your valve adj checked out.

Best of luck.

TonysMI4

^ this... and you need to do a leak down test. It will show you what you need to know. For me it ended up 2 valves would not seat all the way and had to have them replaced.

Fear88

i did it myself. umm no its my first adjustment on a s2k i adjusted slightly but didn't need much. i also swapped all the coilpacks around and still it comes up with the same but just now i checked and its coming up with 1 and 2 now

4forall

if you are confident in your valve adj i would have a leak down test done.

Fear88

The only problem i dont now anyone around my area who has done the valve adjustment on the s2k.I hope It's correct. ok chears Il get it checked

Fear88

Are these cars fussy on the fuel that goes in them