The other day while I was waiting at a light an odd problem started: the idle speed was fine one second at about 800 rpm and the next second it started dipping down, trying to stall, then revving up to about 1500 rpm; it's acting very erratically. After a few moments it will rinse and repeat; it's acting very erratically. It is also running very rich by looking at the small poofs of black smoke coming from the exhaust. Also, if I try to accelerate heavily it hesitates and sputters. At first I thought I had a bad tank of gas that I had just bought the day before, but after two bottles of gas tank treatment (one last night and one this afternoon), the problem is the same as ever. The car has died a few times on me, always as I slow down at a light or stop sign and the rpms decrease.
New stuff recently: Plug wires Distributor Cap Distributor Rotor Oxygen Sensor All small Vacuum Hoses
Tried: Disconnected Oxygen Sensor- No change Replaced Crankcase Ventilation Hose- Maybe helped the idle some but not for the specific problem Replaced ECV Crankcase Grommet- Same Changed Coolant Temperature Sensor- No change
Anything else I can check? What's next? Idle Stabilizer Valve? Be advised that I have next to no tools with me at my current location- especially my multimeter. :( I may be forced to actually take it to a dealer. *Gasp*
Thanks as always for the help, Craig Smith Kaji Shun