Hey I am goning to do something either water or atf. I am leanign toward teh water because I just got a new cat put on. One ? though I know the atf will foul out the plugs, does the water? how much water and how long? i have an 87 13b will the one vacuum hose that ataches to the manifold (the part that says 13b that sits on top) work? That is what they used to do my fuel injection cleaning with.

 

Iīm gonna try both. Start with water then ATF and then another water to get all de remains of the ATF out. I already did the first water run. I used the large vacuum hose right under the BAC. It was the only one that produced enough vacuum to suck the water in. I think it would be wise to use destilled water. btw I didnīt notice a big difference afterwards. It seems that water isnīt harmfull for your cat, some say it will even clean your cat, plugs and O2-sensor.

Marco.