Have Honda Questions? Ask a Honda Repair Expert.
I am sorry that you have not been helped yet. I just came online and saw your question.
Putting in heet will not cause no spark condition. The chugging was likely due to the gradual loss of spark. On these older Hondas it is usually due to a failure of the ignitor and coil.
If you have a voltmeter for testing, I can walk you thru the testing. I will just need to vin number to pull up the testing for the ignitor and coil