My 90' 760 jetronic has the no-start issue. I've changed everything as follows.

1.New Pulse generator (The one on fender above battery)
2.New RPM sensor
3.New Ignition Switch
4.New Fuel Pump Relay
5.Swaped Radio suppression relay and aux cooling fan

Ive tested coil and coil is good (80%sure)
Car battery is fully charged.

Car cranks but no start. I have NO spark. I've found the FAQ's and followed them as best as I could.(without sucesses) I Also found the link to the russian site that has the electrical blueprints for the various models...

So as now, I'm totally out of ideas again. IF anyone has an idea of something I've overlooked or ideas, please let me know..

thanks, tom
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90 Volvo 760 Turbo, 86 Mercedes 300E,87 Maserati Biturbo,95 Hummer XLC

>Does the tach jump when you are cranking the engine?

Yes it jumps so the signal is there...

>Did the car run fine then quit on the road or did it just not start after you shut it off?

A couple of times it just cut off(driving.. at lights..) like I turned it off. (not a sputtering like I was out of fuel, but just off) After 15min, it restarted no problem.(The very odd thing is that my radio would die about 5min before the car.. so of course..ignition switch!..)Before igition switch after the first time the car died, the car for about 30sec while driving was like turning off and on byitself and I could hear they relays clicking like crazy.. sicne then until car died that never happened again.. Now The next week at certian lights at idle it would just cut off, but then immediatly turn back on. Then one day, coming down my driveway, it cut off.. and Haven't gotten it restarted since.

Cam is turning, and timing belt is less then 10k old, so I don't belive it jumped teeth or anything.
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90 Volvo 760 Turbo, 86 Mercedes 300E,87 Maserati Biturbo,95 Hummer XLC

Well, if the tach is jumpin' (and the fish are bitin'...
no, wait a minute...) it means the ignition system is OK.
Spark is being lost between the coil and the plug.
Check the distrubutor and the coil-distributor wire.

Does the tach jump when you are cranking the engine? The tach jumping means that you have a tach siginal.
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90 744ti, Airbox, K/N, Cold air, G-Valve, Dual boost control, VDO, Modified exhaust. 88 745 gle.

Not knowing any history of your problem makes this a little tough. Did the car run fine then quit on the road or did it just not start after you shut it off? Are you sure it didn't just loose the timing belt? If the camshaft is not turning the distributor won't turn and you will get no spark. Easy way to see if the camshaft is turning is to take the oil cap off and look in the valve cover to see if the cam turns while someone turns the key. If you can give more information maybe I can help?
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Volvos4me4ever 1989 245 274K miles still going strong, 1992 745 Turbo 110K miles real nice!