Is your ignition coil cracked or leaking oil? If it looks OK, check AND clean all your wiring connections, especially the temp sensor. If everything looks ok, run the car till it stalls and check for spark, if it's not sparking, check the coil or ignition module.
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a rig you can make to check fuel pressure. goes between filter and the ring. You could also have a faulty fuel pressure regulator. I agree with skittle more likely a fuel issue than electronics. but the other advice on checking ecu, tps and afm connectors for corrosion is valid. another possibility is that z's don't like low voltage. marginal battery, corroded battery cable terminals can cause gremlins. Be sure the ground strap grounds first to the body (should be a bolt about a foot below the battery box) then to the starter. grounding direct to the starter is not a reliable connection. one size fit all terminals shown in pic are also a headache waiting to happen.
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