So I have to paint a picture for ya, to understand whats going on. I have a 98 Chrysler Concorde with a 3.2 Liter V6 it has about 180,000 miles on but runs perfectly, only had one owner except me and that was my granddad when he bought it brand new. so the problem is, in the morning getting ready for work it fires right up, no problem, ill drive it to work and then back home no problem.....now lets say I drive it (on the highway especially) and then sit and let it idle for about ten or fifteen minutes then shut it off...and after it being off for a few minutes ill start it again...EXTREMELY hard to start (it will just crank and start for a second then instantly die) then ill wait a minutes and the car will crank and start but it will be extremely rough and low idle (like 300-500 rpm) and I will have to stomp on the gas to keep it from dying, after about ten to fifteen seconds of flooring it, the rpm starts rising and it kinda "blows itself out" then its fine....so clogged cat (doubtful) or bad coolant temp. sensor. and also where is the ect sensor

 

how about codes in the computer?

 

Not that I'm aware, I'm not getting a check engine light and not getting anything when I do the "key dance", now I may be wrong on this but I didn't think the coolant temp sensor would throw a code since all its doing is telling the computer the wrong temp??? And do I have to throw a check engine light to be able to pull a code? If not ill take it to AutoZone and have them see

 

the key Dance it shows done?

 

well unless im doing it wrong...its just on, off, on, off, on right? if so then no im not seeing any codes, none on the odometer nor the flashing check engine light

 

and also im doing it within 5 seconds

 

if there are no codes DONE will be displayed where the miles are