I recently finished a cam install(CC305, 1.6RR, yadda yadda) and am waiting to put a few miles on the car before I get a tune. I want to hook it up to my friends computer and send PCMforless a file to help get my tune a little more dead on just for my sanity. Well, when I finished up my heat cycles, I took her for a little spin and it was almost like I have a crossed or burnt plug wire. I put her back up in the air and everything was perfect. I remembered when I took my heads off, coolant went EVERYWHERE and got on my O2's so I figured, what the hell, Ill try driving it without the O2's plugged in and it actually fixed my problem. My question is, is this normal until I can get a tune or is this something that a tune will not help? I know its not great to drive without O2's but its just not drivable with them plugged up. Any help, as always, would be greatly appreciated.

Bo

 

Well, I always get the two mixed up, but it's either running full time in open or closed loop. Basically, the computer isn't using your O2 sensors meaning you're not maximizing your fuel efficiency and power curve. replace them.

 

Ooops, I forgot to add, they are brand new. After I found out it ran like *** with them plugged up, I figured they were toast so I bought 2 new ones. Same thing as before.

 

Ok, now I have the problem all the time What do I need to look for? Ive already searched the obvious like plugs and wires and leaks but dont know where to turn next. Im going to run the codes on it in just a minute. If anything new turns up, Ill post up. Thanks guys

Bo