ok i got a 94 civic with the d16z6 im not getting spark and im not sure why i have elimnated alot of posssiblities i have tried a working distributor and it doesnt work eliminating all the coil icm posistion sensors and through the lower wire i have always been getting voltage the yellow one with the black stripe but the upper one yellow with green has been fishie i got no voltage there so i took the wire out of the harness and trace voltage through the wire or at least what i think it is the one coming out of the ecu is red/green theres is voltage there im not sure what else is part of the ignition system out of the distributor that would cause no spark it does crank and does have fuel pressure i running out of ideas so any help would be greatly appreciated so thanks in advance and by the way there is no cell for it and all the wires and grounds are connected it lost spark when i was driving

 

I agree with your focus on the Yel/Grn wire that runs between the igniter and ECU. As you mention, the wire is Yel/Grn at the distributor and changes to Red/Grn at the ECU. In addition, at the ECU, the Red/Grn wire branches to two separate pins of the ECU. You need to check both ends.

The tests below are done with the Yel/Grn wire disconnected from the igniter and with the ECU connectors disconnected.

1) Check for wire continuity from the Yel/Grn end to each of the two Red/Grn ends.

2) Check for the lack of continuity to ground from the Yel/Grn end and from the Red/Grn ends.

If either test above fails, then the Yel/Grn wire is bad and represents the cause of your no-spark problem.

 

thanks for the help man i figured it out it was really weird the harness outside fell between the cv and body and cut sensor wire like the tdc and ckp but i redid tyhe harness and it started up but there is a problem i have been have since i swapped it out lack of power the car is very slow it has the mini me setup but it sucks the car has no ball im not sure what to check besides compression any ideas on that

 

Nice. How did you figure it out?

I am surprised, though, that the cut distributor sensor wires did not throw a CEL??

Power problem: Check your ignition timing with a timing gun. You may have rotated the distributor during your work. Alternatively, the timing belt was installed with the cam and crank one tooth out of synchrony from TDC1.

 

well when i set the timing mechanical wise i did #1 tdc and the cam marks parallel with the head the major issue id say is when vtec pops i doesnt pick up you can hear it engage but no power difference

 

Is the CEL ON?

Have you checked the ignition timing with a timing gun?

 

yes the cell is on for the o2 sensor and the vss i have messed with the timing advanced and retarted it its the same

 

Given that the O2 sensor is dead, the cat may be clogged and destroyed.

 

well the cats hollow unfortunatly somebody either gutted it or got a high flow because the one thats there is hollow i do appreciate the help thanks alot man

 

high flow cats aren't hollow