If i take them off and take the o rings off can i just let them sit in like carb cleaner over night. where can i find new o rings for them? I think they may be kind of clog seeing that i have good compression in my cylinders. This is the only thing I can think off. I have already cleaned my maf. I scanned my car and got a code for the thermoactor(sp?) plugs. I beleve these are the ones in the back of the head that I took off when i deleted my smog system. Thanks for the help. Buying new injectors right now is not really in the budget.