GaryLY

After some good advice from members of the group, I purchased a 1983 SC cabriolet a couple of weeks ago. The car passed a PPI and ran very well for most of ~120 mile drive home. Then the fun started.

About five miles from my house, I experienced a slight hesitation going uphill.
That worsened progressively and the car died about a mile from my house.
I got the car restarted and into my garage, but the car was running very rough. After reading the forums, I replaced the relay under the passenger seat, but the relay did not fix the issue. The spark seemed weak, so I replaced all plug wires, distributor cap, rotor, and ignition coil The problem progressed to a crank but no start condition, though I did get the car to start once after I got the new coil. It ran for about 5 minutes; somewhat rough at first and it started to smoot out. I thought I was in luck, but then the car died... Since then, I have discovered that I now have no spark.

My "green wire" looks okay but I realize it could be bad. The CDI box makes the squealing noise as expected. I've read countless posts and I'm somewhat at a loss at this point. I would appreciate any suggestions.

r911

test the green wire

GaryLY

r911, thanks. I tested between pins 31D and 7 at the CDI connector and I get 586 ohms resistance and 0.8 volts ac (not sure how to measure pulse).

Does this sound like a bad CDI?

theiceman

what relay is under the seat on an SC ???

and what coil did you replace it with ? a silver Brazilian bosch POS ?

GaryLY

It is the lambda relay. I did the MSD high vibration coil. At this point, everything points to the CDI. So I am going to replace it and cross my fingers.

theiceman

those are not cheap , do you have a buddy you can swap with just to see ??

i recently did that for a buddy and no he wasnt getting the Ned Beaty .. ( it wasn't squealing like a pig )

GaryLY

Thanks everyone. For future reference, I put in the new CDI and the car fired right up.

I also went for a nice drive with my boys. I've had my 987.2 for 2 years (after 4 years with a 996.1) and it was great to have both my my boys in the car at the same time again.

Zoeston

well, we just did it, however it still squeks like a pig

theiceman

yeah thats always trickier