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Re: 2000 pontiac sunfire not getting gas --won't start
It is very likely the fuel pump in the gas tank has failed check the fuel pressure, u do this at the test port on the top of the engine near the fuel injector supply tube, it looks like a metal tire stem.
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That can be the symptom of a bad Ignition Control Module, or also a bad crank position sensor. The ICM can be taken off and tested for free at any parts store. The crank sensor circuit can be tested on the car with a multi-meter. Also small motors (like a fuel pump motor) that are starting to fail can sometimes work until they get hot and then stop working until they cool down again.
Next time the car shuts down and won't restart, check for spark on a spark plug wire with the engine cranking over. If you have no spark, suspect the ignition control module or the crank position sensor. If you still have spark, but won't start, check if the fuel pump is putting gas up to the engine.
The 1137 OBD2 code is typically an o2 sensor problem as you have indicated, first I would make sure your replacing the correct o2 sensor as there are two (upstream and downstream), although it is possible that a bad o2 sensor could keep your engines fuel injection system from delivering the fuel to your engine, in my experience having a bad sensor typically results in a check engine light and running with a less than optimum fuel air mixture, it does not typically keep your vehicle from starting. If your still getting the 1137 error code after replace the o2 sensor and checking its connecting wires I would start looking for a bigger issue.
Your problem is typical for these cars. The throttle position sensor is bad. Go to Auto Zone and have them check the codes to confirm this. i've seen this many times, that's usually the problem. It makes the car feel like the brakes are on. Hope this helps. Let me know. Phil
Im surprised that didn't fix it. On the Quad4 engine its usually a cracked coil housing.
Have you checked:
fuel injectors / fuel pressure
coolant temp sensor
compression - to check for bad head gasket
ignition control module
EGR system - make sure the valve isn't stuck
crank position sensor.
The crankshaft position system variation compensating values are stored in the PCM non-volatile memory after a learn procedure has been performed. If the actual crankshaft position system variation is not within the crankshaft position system variation compensating values stored in the PCM, DTC P0300 may set.