Numerous Parts replaced already as in: Throttle Positioning sensor, thermostat, fuel pump, fuel pump relay, fuel filter, spark plugs, ignition control module, downstream 02 sensor, a vacuum leak was found and repaired, the air filter is good and the catylic converter is good. It was throwing out the code po179 (low circuit imput) and we replaced the flex fuel sensor and I still have the same issue. I am about at a loss.
Alcohol in Fuel Test and Reset 2006 Flex Fuel Chevy Impala
you need to reset the PCM ,you need to find a guy like this.
SOURCE: 2001 GMC Sonoma Engine stopped while driving
sounds like it could be plugged injectors or a timing problem.
SOURCE: 1999 Yukon cold start problems.
1999 Yukon Start Issue - I have replaced the octopuse, battery, fuel filter, fuel pump, still having problems starting in cold weather, sometimes after a heavy rain.
Any suggestions?
Thanks
SOURCE: Mustang, 1992 2.3L dual point OBD 1 error codes problem
Have you checked for spark on all 8 plugs? Unplug the exhaust side coil pack and run the engine. Does it run on all 4 cylinders?
SOURCE: 1998 Jeep Grand Cherokee Laredo 4.0 6cyl, when i
Have you checked the coolant temp sensor. They also have something called a MAP(manifold absolute pressure) sensor that could be causing this issue. This sensor will have a 4 pin connector and 1 vacuum line going to it. Should be on the firewall, just behind the engine.
SOURCE: I have a chevy silverado - 5.7 engine. It runs
Fuel Pressure/Pump?
Injectors?
Fuel Pressure Regulator?
Are there any codes/check engine light?
Ignition coil?
Just off the top of my head.
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