Engine stops when warm

[hhi]

Hello, I have a Lotus Esprit S4 1994. When the engine gets hot the engine (car) stops, if I wait a little while allowing it to cool down it will start again. Any idea what causes this? The garage can not figure this out (not Lotus experts since this is in Norway) Is there such a this as a EOBD plug where they can plug in to get an error code?

Thanks

[sailorbob]

The ECU uses the GM ALDL diagnostic protocol. There are two connectors for it, one behind the glovebox and one in the relay box in the boot. You can use the freely available Espritmon, TunerPro or Freescan programs with the right cable to read error codes and get live data on a PC. You will not find any error codes unless the check engine light is on permanently (current fault) or stays illuminated for about 10 seconds after starting the car (historical fault).

Initially I would investigate the coil packs and the crank sensor for cutting out issues when hot.

[tmusc]

Actually I just helped one person figure out the exact same problem. Car would run fine, once warmed up it would die. Cool off and restart. It ended up being the ignition module under the coils.

[hhi]

20 hours ago, sailorbob said:

The ECU uses the GM ALDL diagnostic protocol. There are two connectors for it, one behind the glovebox and one in the relay box in the boot. You can use the freely available Espritmon, TunerPro or Freescan programs with the right cable to read error codes and get live data on a PC. You will not find any error codes unless the check engine light is on permanently (current fault) or stays illuminated for about 10 seconds after starting the car (historical fault).

Initially I would investigate the coil packs and the crank sensor for cutting out issues when hot.

ok, thank you very much for good information

17 hours ago, tmusc said:

Actually I just helped one person figure out the exact same problem. Car would run fine, once warmed up it would die. Cool off and restart. It ended up being the ignition module under the coils.

Thanks a lot, one step closer to making the car drivable again