Apologies for the above redundant posts. Didn't know they were posted so I kept repeating myself. Anyway, the problem I was experiencing ended up being the fuel pump relay. I let the car stall after the usual 5 minutes of running, paying close attention, and it died as though it just ran out of gas....

Here is my update. I completely replaced the leaky PCV system, even the complicated part with the banjo bolts. The list of new parts is this: PCV system, new fresh air intake (old one cracked at turbo inlet), new MAF sensor, new ignition coils, spark plugs, new o ring seals beneath coils, new oil fi...

Time to post an update. There is no change in conditions after PCV replacement and I replaced all the PCV components including the piece with the banjo bolts and a new air intake hose that has the PTC nipple and goes to the turbo. Part of the plastic cracked off under the screw clamp and I wanted to...

Here is an update: Replaced PCV system including the part that connects with the banjo bolts, new fresh air intake to turbo with PTC nipple, new vacuum lines from turbo control valve (on IPD turbo control valve). I had my injectors cleaned by Mr. Injector of Idaho, so new o rings and filters and pin...

Okay, thanks. I did pull the fuel pump relay and examined the guts of it. I read about the capacitors being replaced and soldered in. I have no way to know from looking. I mean, it looks clean and intact to me. I don't know if I will ever know for sure as it is an intermittent problem though frequen...

I could not find a fuel injector relay on any parts diagram from Volvo. There is the fuel pump relay listed though. Is this what I should look at?

He said all injectors were full function, and all coils were normal; no measurement as far as psi or anything. Very interesting. I got nearly stranded today, just posted a new topic. It ran great until this evening. This time it died out and I got the flashing yellow arrow. My PCV system is most def...

This is my second post in as many weeks. Took my V70 away from the mechanic who had it two weeks and failed to do anything to remedy the issue. It stalled and wouldn't restart on the way to work and I had it towed to the garage. On advice of forum contributors, I replaced the last two old ignition c...

Okay two weeks later and $300+ in diagnostics and tow, here is an update. Drove it home from the mechanic with low power. Put in two remaining coils, and it runs noticeably better already. I'm about to run to the dealer for some new spark plugs. Discovered I botched my PCV repair of a year ago. Shor...

I thought the same thing about the sulfur smell from the catalytic converter being bad and I've pounded on it when I removed the drive shaft. (Yes, I had the prop shaft failure, too.) The only rattling was the heat shield. The only O2 sensor that ever registers is the one before the converter. I nev...