1994 ECM PCM Change Procedure
#11
Senior Member
True Car Nut
When the engine won't start, check to see if you are getting spark on all cylinders. If you are, check fuel pressure.
Sounds like a crank shaft position sensor, not a camshaft position sensor.
Sounds like a crank shaft position sensor, not a camshaft position sensor.
#12
Also, does it make sense that a bad crankshaft sensor would make the relays go clicking away like that?
Thanks!
#13
Senior Member
True Car Nut
An engine needs three things to run ... spark, fuel and air. I am taking you back to the basic tests of trying to determine if you have spark and fuel. You can check for spark by (one at a time) removing each plug wire from the coil pack, and while cranking the engine hold the loose end close to the terminal on the coil pack. Close, but not touching, and make sure you hold the wire using something insulated. If, while cranking the engine, you see spark jumping from the coil pack to the plug wire, replace the plug wire and repeat for the other five. If you confirm spark on all 6 cylinders, go to your nearest parts store and rent a fuel pressure tester ( they charge a deposit that will be returned when you bring it back) and use it to check fuel pressure. Let us know what the readings are.
#14
An engine needs three things to run ... spark, fuel and air. I am taking you back to the basic tests of trying to determine if you have spark and fuel. You can check for spark by (one at a time) removing each plug wire from the coil pack, and while cranking the engine hold the loose end close to the terminal on the coil pack. Close, but not touching, and make sure you hold the wire using something insulated. If, while cranking the engine, you see spark jumping from the coil pack to the plug wire, replace the plug wire and repeat for the other five. If you confirm spark on all 6 cylinders, go to your nearest parts store and rent a fuel pressure tester ( they charge a deposit that will be returned when you bring it back) and use it to check fuel pressure. Let us know what the readings are.
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