CDI location...

[wwest]

'88 Carrera, where is the CDI located. And I see no "trigger" wiring from the distributor...Crank position sensor...?

Started then died within 2-3 seconds, now cranks but no start. Fuel pump runs with jumper bypass to fuse, no spark from coil.

Tach does not "jitter" while cranking.

[304065]

There is no CDI on an 88 Carrera, the coil is switched by an IGBT on the Motronic board itself.

[Rot 911]

DME box is located under the driver's seat. Right next to it is a small, black cube, which is the DME relay. It also controls the fuel pump. I suspect the DME relay has gone bad in your car.

[wwest]

Strange..

Fuel pump was getting power during cranking but no sparks..

Disconnected battery ground, count to 10 slowly, reconnect, crank...START...!!

What...??

[Joe Bob]

Check the voltage at the alternator with a DVM.

[wwest]

Originally Posted by Joe Bob

Check the voltage at the alternator with a DVM.

Happened to this car about 15 years ago, battery began to boil, drove home with all electrical loads ON.

New battery and alternator back then, Squire's.

I have a Fluke DMM and an O'scope.

[wwest]

Strange..New DME relay but still no start. Biopsy on old relay (non-OEM) indicated it was in good condition.

Wiggled a few of the fuses in the front, can started right up.

Symptoms: sometimes no start, sometimes start but stops with accelerator depression, sometimes start, run in place for a minute or so, drive away.....

[Ronnie's.930]

A Spal fan, triggered by an over/under voltage switch, aimed at the fuse panel = problem solved.

[wwest]

Originally Posted by Ronnie's.930

A Spal fan, triggered by and over/under voltage switch, aimed at the fuse panel = problem solved.