| Erratic timing timing light
| Hello, all. I recently converted from TBI to TPI and have been chasing a gremlin(not the car) ever since. When I use a timing light I notice very eratic/unstable strobes while observing the timing mark either with or without the distributor control mobule connected to the ECM. Shouldn't the strobes be steady while runnig on just the distributor module? The engine also takes about 5 minuets to get down to a proper idle. I have replaced the O2 sensor with a heated unit(headers) to no avail. Help. | | | | 
