Re: Bob's '55 Patrician Blog

Posted by John On 2019/2/21 10:20:44

You could measure it after running for a while and experiencing the misfiring. I would try to either redirect an airflow to the resistor or temporarily relocating it as far as possible away from the engine heat, just to see what happens. Intermittent problems are the most difficult to diagnose, but usually if it's heat related, it will be a bad ground or component changing value. I've experienced a lot of crazy problems because of a missing braided ground between the engine block and firewall.
Edited: Was just thinking that you said you measured the resistor wired and cold. To get a true reading, you would have to disconnect the resistor wiring so that you only read the resistor and not the connector or wire, depending on where you place your probe.