hey H-T, i got a problem wit my car and im getting frustrated cause idk wat is wrong, first it had a bad cat cel, replaced the cat then now saying the secondary o2 was malfuntioned, now i bought a brand new one and got it installed and the cel is still there and advance auto parts told me it was secondary malfuntion and i told the guy i jus replaced it like 10 mins ago and came to him after i got it installed, reseted it and it came back on.

now another problem came up this past week, and it is kinda pissing me off. i start the car and its all fine but after it warms up and i drive for a few mins and get to a light, as soon as i put it in neutral and foot off the clutch, while jus rolling i feel the car shake as if it was gonna stall out and i look at the rpm and it jus nose dives real low to the solid lines which i believe is about 500 rpms. and wen i dive it requires me to have more gas before i release the clutch or itll jus struggle and shake. some people say it might be an alternator/ battery issue cause i traded my ViRS four door for this and this car had 150k highway miles and the first day wen i looked in the hood i see so much s**t and dirt in the bay and look at the battery and saw corrosion all over the terminals and cable post.

any info or help would be good. need help on both issue and would be good to get an answer for both.

thanks in advance guys.

 

how are your spark plugs? When was the last time you changed them?


Also you probably need to clean your IACV

 

Umm i changed the spark plugs like 3 weeks aftr i got the car wich was like 2-3 months ago wit ngk irodium ir laser i think?. And i was also thinking it might be the iacv too. You know how to do it? I know your like a guru on rsxs lol you have any diy or know where?

 

i got the Cel code checked and i got one code which is a Dealer Code P1166 meaning : HO2S11 Heater Circuit Fault (Bank 1 Sensor 1)

which sensor would that be? i jus replaced the second one and the first one was working fine wen i got the car.