Idling rough when jumping TE1 and E1 Options

[1994whitecelicag...]

Hey All, I would like to ask for some help. I was trying to check my ignition timing before I went for a smog check. But when I jump TE1 and E1, the car starts idling really rough and would almost die (did one time too). Would anyone know where I should start looking? The car idles and drives perfectly fine. I did take apart my car when I replaced the head gasket. But I had a neighbor was is a mechanic check the camshaft and crankshaft timing. Thank you in advance.

[1994whitecelicag...]

Thanks for the reply Special_Edy. I really appreciate the thorough explanation. I will be sure to check the base timing. I noticed that in the manual they instruct to check idling rpm with a tachometer connected to the diagnosis port. Do you think reading the in dash tachometer would be sufficient enough? Thanks

[Special_Edy]

Thanks for the reply Special_Edy. I really appreciate the thorough explanation. I will be sure to check the base timing. I noticed that in the manual they instruct to check idling rpm with a tachometer connected to the diagnosis port. Do you think reading the in dash tachometer would be sufficient enough? Thanks

Yeah I wouldnt worry about the rpms, just make sure its idling close to normal speed. The only concern is that as it revs up the timing will advance, so if your idling at 1200 rpm or soelmething you may get an inaccurate base timing.