hi i have a 1991 honda civic DX and i trying to do a compression test, one of the thing to do is take one of the wires from the distributor cap and conected to ground, witch one,there is two plug attach to the distributorcap and the 4 wire coming from the spark in to the distributor cap,any info will be apprecited, thank you for your reply.

 

Go here for a DIY by Forty04:

https://www.hondacivicforum.com/m_386770/tm.htm

 

i personally just leave the distributor and make sure the plugs are nowhere near me or anything that the spark will damage

 

In the Haynes book described that you need to disable the gas pump by taking the main relay out, also lock the throttle body wide open and take the primarycable from the center of the distributor cap and ground it, is this necessary to get an accurate reading
thank you

 

i usually just disconect the wiring to the distributor, take out all the spark plugs, and go from there

 

Just follow the DIY that was posted above