No sparks Options

[914boy]

I figured I should make a new thread.

Converting back to fuel injection
1.7 djet


We try to start the car, it cranks but does not start.

Timing and TDC are checked and spot on,

the coil will not spark.

Just to confirm. The thick black/ purple is on the positive (+) side of the coil and the small black and condenser on the negative (-)

With the ignition on, I get 12 volts at the + / black/ purple wire
with the ignition on, I have ground on the negative side of the coil,
when I crank, the negative side of the coil switches from ground to 12 volts positive

I replaced points and condenser and coil,Same issue.

[timothy_nd28]

When you say it switches from 12vdc to gnd at the coil while starting, how are you measuring this? Most digital multimeters can't do this in real time, there is a lag on the meters voltage printout. I'll take your word on this though, maybe you have a old school analog meter? If you have 12vdc on the positive side of the ignition coil, and the negative side of the coil is indeed pulsing, you should have spark. You should make sure the rotor is installed, and double check the condition of the cap and wires. After all that, I would ohm out the ignition coil.