cylinder 3 and 4 misfire
 

I'm having issues with cylinder 3 and 4. They are getting fule, No spark, both have coil packs on cylinder 3 and 4 but cylinder 1 and 2 work fine.

The catalytic glows red due to the fuel being poured down from no fire in 3 and 4.


thank you

Model? Year? Modifications? Codes? :confused:

I'm guessing bad coil packs. Replace the plugs while you are there.

I recently had a misfire issue after I got my spark plugs changed. The coils shorted out and we were only misfiring at higher speeds. So Hudini is probably right, you need new coil packs.