Hi guys,

I've had a problem with my 760T stalling (B23ET). I've asked here about it. And we've changed both fuel pumps, relays, checked all wiring, hoses, etc. A friend has got it now and he has gone even further into it, checking just about every sensor, wire, ground, etc. (he's a pretty cluey guy). He's also asked a couple of volvo experts, and after checking everthing else they mentioned, they think it must be the computer now. A new computer is AUS$350, so quite expensive, and they don't let you test it out (to see if that is the problem).

So, has anyone else had this same problem, and this turned out to be the culprit?

Another problem the car is having: It is missing every couple o senconds when cruising at about 70kmh, at about 2500RPM (i think). Can the computer cause this as well?

Thanks for any info...

i have a 91 740 se. i had this same problem and it was the ignition power stage, or ignition control module.

Something you may have forgotten to check is the spark plugs, spark plug wires, the distributor cap and rotor and the coil. As stupid as this sounds, 1 spark plug lead that is *slightly* faulty will cause a miss every 30 seconds or so, at "high" power, which is about 2500rpm+, i know, because my car does the same, spark plugs lead no.3 has about 4 x the resistance it should.... OH! One other thing, go to Volvo and get a set of GENUINE spark plugs leads, because they are THE ONLY ONES that fit proplerly, all these generic "REPCO" ones, etc, don't have small enough connectors, while it seems they fit, they don't, trust me on that one! Bougicord are the only ones in Australia that i know of, go to "euro car parts" (they are at revesby in sydney and deliver all over australia) for the distributor and rotor, it's cheap enough to replace even if "it isn't that old"..........Next would be the hall sensor...... Computers usually don't 'cause stupid stalling problems.....
Have you checked AND resoldered the fuel pump relay?
Az

I'd seriously consider the hall sensor in the distributor, i had this problem a few years ago and it would stop when warm, then restart later on! This drove the shop i had it at nuts and all they did was throw parts at it (never do business with auto europe in birmingham, MI) for the good long couple months they had the car and expected me to dish out $700! I'd check the hall sensor.

Dan

I'm pretty sure it doesn't actually have a Hall Sensor. Being a B23ET (not a B230), it doesn't have too much of that electrical stuff...

And the FPR has been changed twice, not with new ones, but out of cars that were running fine, one was dated '98 too.

I'm also pretty sure the plugs and leads are new.