89 900i strange problem

CISK Jetronic, 2 litre with Hall effect ignition.

Symptoms.
Loss of power and misfire after 20 miles having rested overnight.
After initial loss, resting the car for 5 minutes will yield return of power
for another mile or two before symptoms return.

Remedies already tried and things fixed.
Fuel line and filter, changed.
Ignition coil swapped
Checked for water in tank
Checked ground connections and cables
Cleaned air cleaner
Checked fuel pump delivery
Control main voltage appears OK
Gapped plugs


Any suggestions most welcome either to group or directly to this email address.

TIA

JJ

"jeremy" wrote in message

> CISK Jetronic, 2 litre with Hall effect ignition.
>
> Symptoms.
> Loss of power and misfire after 20 miles having rested overnight.
> After initial loss, resting the car for 5 minutes will yield return of
> power for another mile or two before symptoms return.
>
> Remedies already tried and things fixed.
> Fuel line and filter, changed.
> Ignition coil swapped
> Checked for water in tank
> Checked ground connections and cables
> Cleaned air cleaner
> Checked fuel pump delivery
> Control main voltage appears OK
> Gapped plugs
>
>
> Any suggestions most welcome either to group or directly to this email
> address.
>
> TIA
>
> JJ


Hall effect pickup in distributor. Seen it twice.

dave