Thanks for all of the input. I went out and bought a fuel filter today - going to throw it in this week. FPR was replaced with a used one a few months ago. Regarding the electrical, yes I did clean and brush/sand down all the grounds that I know of. Do you know of a list of all the grounds I could d...

That's true, didn't think about that. Now that you mention it, it's just a small little spurt from the rail, instead of a heavy flow like I'm used to seeing. I'll work on getting a fuel pressure gauge from Harbor freight or renting one. I was throwing codes for ECT before even though I replaced it. ...

Hey dudes! I woke up to find my 850-R cranking, but not starting... I'm getting spark at the distributor, fuel at the rail. Battery and alternator are new. Keeps sputtering but just wont start! I tried a few time and the iac was still buzzing after I stopped. The batter eventually was drained after ...

Hey dudes! I woke up to find my 850-R cranking, but not starting... I'm getting spark at the distributor, fuel at the rail. Battery and alternator are new. Keeps sputtering but just wont start! I tried a few time and the iac was still buzzing after I stopped. The batter eventually was drained after ...

Crimped the words going to the ect. No changes. Still getting hardcstarts, fan issues, throttle response issues, flashing arrows. I'm hesitant to continue treating them as isolated problems, especially since they alll started within a few day span...

This is interesting... Off to crimping! I'll post soon.

Instead of using a two prong connector, I cut off the connector and soldered the wires to each other. Can is back to running again after the car is off...

Update: Replaced Coolant Temp sensor with OEM, Cleaned contacts and wiring for main fuel injection relay, checked vaccuum lines going to charcoal cannister. Changed synthetic oil and a new filter. Did the first of 3 Auto tranny drain and fills. A couple things: Should i be able to blow through the l...

Ordered genuine volvo coolant temp sensor today -it will be here next week. Going to jack the car up so I can trace those wires to see the other side of the connection as well. Anyone know where they lead? My 850 has the fuel pressure regulator behind the rail - that's the one I replaced. Regarding ...

Your saying the AFtermarket part could be the culprit, correct? I will order a Volvo one and try it out. I was also thinking that maybe it could be a loose connection at the other end of the ECT wires? What's the chance of that? Bought some MAF cleaner. Going to try that. The IAC valve was pulled ou...