would a missfire trigger the check engine light?

 

Yes. If There is any fluctuation in crankshaft speed, the ecu can reconize that as a misfire.

 

ok, i just rebuilt my dizzy and now when i am at low rpms my engine kinda feels like it loses power or jerks for a millisecond, and no check engine light comes on. it doesnt do this all the time. i originally thought it could be a missfire. any suggestions?

 

incorrect ignition timing

 

Yes. There is a code for misfire(i think it even specifies 2 cylinders). But to throw that it needs to misfire pretty bad, and for a while.

 

a easy way to check for misfires is with a compression gauge.a good compression would be around 150 psi or so.anything less than 100 could mean bent valves or your piston rings are colapsed.a cyl. leak down test will help u determine if it is the rings or not.if both are good,check ignition or fuel.more so ignition if your car can run.also check your spark plugs and wire.oem wires and plugs are the best to use.make sure they're new or if used in good condition.

 

why would you start with a compression check, after he said it started doing it after he rebuild his dis.

 

it only does this every once in a while. not that often and only noticable at low rpms. to me in the drivers seat it kinda felt like a missfire, but no engine light. the motor runs strong and doesnt appear to have a lack of power. the firing order is deffinatly correct. and i dont think a compression test is necessary.

 

sorry,i thought you had a misfire happening already prior to rebuilding ur distributor.