Idle problems

Originally Posted by ernbuild

Yes Guys the injectors were out, however all new O rings when it went back together. By the way the engine was apart 18 months ago, and was running ok till a few weeks ago. Have monster headers fitted, and relocated the O2 sensors further away from the engine. Also no cats, and burns a little oil at start up. Will check O2 sensors as well, as read also if they have a build up of gunk can cause surging. Will keep you advised. Thanks again for all the info guys, cheers Ern.

You reuse the factory injectors or replace them with something else?

Your O2's are not the problem, as they do not come online until after the car is warm. You say you are experiencing this issue on start up as well.