Just washed the engine compartment at the carwash & engine ran like shiet. Checked with code reader got P0303 - #3 misfire. Anyone have experience with this? What is the likely cause?

Thanks in advance


xjeepr(Rob)
01 Sporty 4dr
1.4" 4crawler BL, 2.5" Upyourkia spacers with rear TJ coils, 29.5x11.5 SSRs on black DC-1s
Custom bumpers, rails & skid
www.go-greener.ca