hi guys
i have a problem that concerning me quite a long while, hmm...
when i first start the car at the day, the car is running fine and soild, no sign of any failure and is pulling strong
however, when the second time that i start the car (for say- when parked my car shut it off for a few minutes or couple of hours then start it )at the same day while the car is still warm/hot, the car is running rough , idle rough, lossing power and loss that soild sound
the car will return to normal only if it is completely cool down or the next day morning but will keep doing so if i shut it off and restart the car

so, could u guys help me out to find out the possible solution ?please any comments welcome

i suspect that it may be due to misfire? or something related to the ignition system

thanks

 

anyone have an idea?? thanks

 

Do you let your car warmup, or do you just start and go?

Also, have you tried the map whack / clean / replace method? and an ecu reset? The latter is probably unrelated, but when it seemed that I had hesitation problems it definitely helped

 

i have done the map whack, IAC cleaned, and ECU reset, but it just doesnt work, though, the car did run better, it just return to normal after a few days

 

anyone hepppp??please.?