What's up guys. I've got a 99 with 100k that has an idle issue. The idle bounces up and down, and the car stalls sometimes when coming to a stop. I've replaced coils and ks, however I am throwoing an o2 sensor code (0512), but that's due in part to a leaking y-pipe.

Any ideas what could be causing this?

Thanks,

Renee

 

Could be a # of things I would check the IACV and your TPS. Could also be a vacuum leak somewhere. Just a few that came to mind.

 

i had a simaliar issue check to make sure your maf is pluged in properly and there is a clean connection. good luck

 

Will do tomorrow. Weather permitting.

Thanks.

 

my 99 cali spec had/has this problem. I haven't fixed the idle fluctuating issue but the stalling I fixed by cleaning my IACV and opening the big black plastic screw. since then it hasn't stalled due to rpm drop when coming to a stop.