Question about 1995 Geo Metro

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Starts and dies on acceleration then will not run

Starts and dies on acceleration then will not start for hours, 94 Geo 1.0, 120 psi cyl pressure, swaped with proven good parts - Distributor, ISC, MAP, EGR, EGR Modulator, Noise Suppressor, Ignition Capacitor, ECM, Wires, Plugs, Dist cap, Rotor,VSV 39 k ohm's, checked ECM Grounds at rear of Manifold and at ECM, Complete pin out voltage check of ECM A,B connectors all good, 23 psi fuel pressure and fuel is good, 6K ohm's resistance coolant sensor, you can see spark with inline tester , dist rotor position and timing marks align same as other car, no codes even after continous cranking with ignition kept on. TPS voltage from ECM 5 volts, TPS ohm's check correct.

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Crank shaft position sensor is most likely cause. Do check ignition and fuel pump relays with an ohmmeter to make sure they are not faulty. Check power to ignition module. You can also check crank sensor with the ohmmeter. Check all vacuum hose and also check throttle position sensor.

Posted on Nov 15, 2009

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Try pouring some neat petrol into manifold and if it fires we can go from their .

Posted on Nov 15, 2009

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Posted on Jan 02, 2017

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