ka24e problems!!!!!!

[ka24depignosecoupe]

i have a 1990 coupe with a ka24e that has 202,000 miles on it and it has been giving my problems lately. it has been very hard for the car to start up then when turning on i get a strong smell of gas what can this problem be? i sea foamed the car about a 3 weeks ago and it ran like a champ for about a week and a buddy of mine told me that after you sea foam any car you should change the oil becase sea foam thins your oil. is this true? i read the bottle and it said nothing about changing the oil. i took out the spark plugs today and they had oil on the threads and dark electrode tips.can this be from the car burning oil?or is it the stuff that came out of the motor while sea forming it?

can my very hard startups, and the smell of gas be a problem with the o2 sensor on the header?

i need help please!!!!!!

[Gabes13]

where did you put the sea foam? crankcase?

[nismoracingsx]

yes you're supposed to change the oil after seafoaming the crankcase

[ka24depignosecoupe]

yeah i put it in the crankcase

[Gabes13]

3 weeks with thin oil?!?!?!?! I wouldn't even drive 10min after sea foaming the crankcase.