I have replaced the IAC and the temp sensor as well?? The AC works fine no leaks there! Could there be a fuelinjector leaking down or fuelpressure reg. be bad?
Yo GEORGE;
fuel pressure reg (FPR) test; pull vac line off, any aroma of gas or gas in line; replace FPR bec diaphram is bad
fuel injector
Pintle Crack pic "...Here's what a mostly-cracked pintle cap looks like. Napa sells replacements, part 2-15018, for $0.39. It beats buying new injectors..."
Source: by Richard C (Bigric, Money Pit) at
http://www.supermotors.net/registry/4584/16165
Fuel Charging Gasket Kits Depiction; This kit contains the necessary replacement gaskets and “O” rings for fuel rail, injector, pressure regulator and throttle body service. - 80.6 MB pdf
Source: by Ford at
http://www.fordinstallersupport.com/files/catalogs/fes200.pdf
Exhaust Color Diagnosis; Smoke,
Black Smoke: Black exhaust smoke is an indication of rich fuel condition. These are possible causes:
Fuel Injectors: A leaking fuel injector will cause a rich fuel condition.
FUEL PRESSURE SPECIFICATIONS
Key ON
Engine OFF
35-45 psi
Pressure Test Gauge Overview & pic; "...To test the fuel pressure you’ll need this tool. You will need to ***** it onto the schrader valve on the top of the fuel rail, it looks like a tire air valve stem. After attaching the fuel pressure tester, run the fuel pump for 10 seconds. Check that the pressure is within specs, and it doesn’t leakdown more than 5PSI within 60 seconds after pump shutdown..."
Source: by Ryan M (Fireguy50) at
http://oldfuelinjection.com/?p=12