Major problem PLEASE HELP!!!!!!!!
OK soo my car has been acting up a lot latly at the idle stages. From what i have gathered here it seems to be the IAC. So i ordered the block off plate. I tryed to unplug the IAC and it seem to not make too much of a difference. But when i am in park it idles anywhere from 200-800 rpms. Now if its really low i will press on the gas a lil and bring it up to 1500 and let it sit there for a bit. Now it almost like there is some kind of resistance in either the fuel or the air flow because i will keep my foot so that it is sitting at 1500 rpms and it will chill there for a bit and then without me moving my foot it will shoot the rpms up to 2500.... So idk what that is. This all pretty much started when i put Lucas fuel injector cleaner in. Could my injectors be clogged????? We were looking at it and my buddy is kinda a mechanic at a shop. When it was idleing he took off the oil cap and it stalled. he told me to start it back up and i did. It stalled again. One more time and it wouldnt start..... then we put the cap back on let it sit for about a min and it started right back up... but now when the cap is on and its idleing and then stalls sometimes it wont start right away... My buddy says there is a major problem. Because of vaccume issues is it supposed to run with the oil cap off? Thanks for all your help guys......