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It happens, especially with ethenol blended fuel
Check fuel rail pressure to ensure you do not have a pressure regulator issue
Listen to the injectors click/ fire if possible
Check wiring to each injector that is possible
Then plan to remove intake plenum and fuel rail, service/ bench test the injectors. Many times a cleaning is all they need
Matched set of reman injectors are cheap enough
Plan to replace intake plenum gaskets, injector O rings, injector seats (if 3.0 uses them?) and fuel filter
JAMMAN wrote:
Stuck injector. You might not even get a code if it is stuck mechanically. Even intermittent sticking would cause a rich condition.
Never seen it on a Ranger but seen a LOT on the GM cars...
What should I look for when checking the fuel pressure? The fuel pressure should be in between 60-70 psi correct? The guy I bought it from said he replaced the injectors and fuel rail, but I can't say for sure that he had bank 2 replaced. I t doesn't look like the intake was removed, if it was I'm pretty sure he would have replace the valve cover gasket.