On my 90 740gl it is right next to the ignition coil. It depends on the ignition system used.
On a Regina ignition, I think everything is built in the coil (The big square one)
The regular round coil is for BOSCH ignition and a separate module is use. NOT SURE, would appreciate confirmation.
In the 1989 Volvo 740 GL with a Bosch system it is located just above the steering column on the dash.
infolinks.com free pdf diagrams... took me forever to find these... be blessed
buy a new one
Haynes Repair Manual for Volvo 760/740 has diagrams of the vacuum sub-systems.e,g. the EGR, the ignition etc
Remove the ashtray and you will find them there.
you can find it in a workshop manual
flywheel settings
there is no part called an "ignition controller". one part is called the ignition control module or "power stage" which is on the left side inside fender wall partially hidden by the air cleaner, the other part is called the ecu, electronic control unit or computer and it is under the dash above the accelerator pedal.
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To change the ignition coil on a Volvo 740, first, ensure the engine is off and disconnect the negative battery cable. Remove the ignition coil's electrical connector and unscrew the mounting bolts securing the coil to the engine. Replace the old coil with a new one, reattach the mounting bolts, and reconnect the electrical connector. Finally, reconnect the battery and start the engine to ensure proper operation.
Yes. The 740 and 940 are very similar and share many common parts.
to change the distributor on a 740 Volvo undo the 3 captive bolts that attach it to the back of the rocker box you will find it easiest to you use a short box spanner and yes it is awkard