1992 Chevrolet Lumina APV Q&A

1992 Chevrolet Lumina APV Question: engine codes

i just purchased this van and so far i have put a TPS and Cooling sensor on it, and it has a rough idle and the check engine light blinks on and off, and shows a code 15, any ideas? -
Answer 1
How is the engine temperature, is is normal? How about the wiring and the connector at the temperature sensor? Are you sure there is only the 15 code? DTC - 15 Engine coolant temp sensor error (low temp indicated) -
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