metzep 5 #1 Posted November 9, 2022 Hi Folks. So test showed module in working condition...tested on machine....then the p220 ran great for about two minutes then shut off.. so it now shows it fails the test.... so i checked the coil, the ring the woodruff/tail key the switch,the battery..all good.....ordered a new 166-0785....module....installed paying attension ...then ran machine for two minutes promptly shutting down. new ignition module is ..showing failure ... how is this possible? 1 Share this post Link to post Share on other sites
lynnmor 7,813 #2 Posted November 10, 2022 Are you following the procedures in the Onan Service Manual? Did you test the voltage regulator to see if the correct voltage is being supplied? Is the coil wired properly? Share this post Link to post Share on other sites
horseyheaven 113 #3 Posted November 10, 2022 I have something to try and it is a really cheap part. I had this happen on. Steiner with the same engine. Look for a little circuit breaker under the dash. When that thing went bad it would run a few minutes until the breaker got hot. Then, it would shut down. I went through everything you just mentioned. Put a new circuit breaker on and it never did it again. It made me sick because the circuit breaker is less than $10 compared to the time and money I had invested. I hope this helps. Will Share this post Link to post Share on other sites
RED-Z06 2,567 #4 Posted November 10, 2022 The pickup under the flywheel is failing? Share this post Link to post Share on other sites
