NR2k Posted June 23, 2019 Report Share Posted June 23, 2019 Looks like the ignition amplifier may be fried on our 84 turbo. It is an AB14, which my research has identified as also fitted to the Jaguar XJ-S. The replacement for the GM module which seems to be favoured by the jag forums is from summit racing as below. Has anyone tried this on an Esprit? Is the module delco d1906 or gm19180771? Quote Link to comment Share on other sites More sharing options...
Gold FFM Steve V8 Posted June 23, 2019 Gold FFM Report Share Posted June 23, 2019 I believe the AB14 ignition amplifiers contain a simple diode and condenser and can sometimes be repaired, worth a look inside. Not something I've done, but having owned jags with this common problem it's something I've heard done. 1 Quote Link to comment Share on other sites More sharing options...
ekwan Posted June 24, 2019 Report Share Posted June 24, 2019 5 hours ago, Steve V8 said: I believe the AB14 ignition amplifiers contain a simple diode and condenser and can sometimes be repaired, worth a look inside. Not something I've done, but having owned jags with this common problem it's something I've heard done. Apparently, the later GM modules now dispense with the diode, although the condenser may still be required for suppression purposes. Someone please correct me if I am wrong. 1 Quote Link to comment Share on other sites More sharing options...
PhilW Posted June 24, 2019 Report Share Posted June 24, 2019 Nicola I thought the same on mine recently. No matter what I couldn't get a spark and narrowed to the amplifier. I borrowed one and found mine was fine. By unplugging the rev limiter gave me the spark back so there is a fault somewhere but not the amplifier. Maybe worth a check. 1 Quote Link to comment Share on other sites More sharing options...
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