1998 V70 AWD OBDII Live Data check

TheLoneAviator · Post by **TheLoneAviator** » 04 Sep 2014, 10:03

Can someone advise if this data is in the ball park?

calc Load 1.9%
ECT 201*F
RPM 840
Spark ADV. 10*
IAT 100*F
MAF 0.670
TPS 11.3%
Air Status off
o2s b1 s1 0.4 to 0.840 varies
STFT b1 s1 6.2% varies
o2s b1 s2 0.095
STFT b1 s2 37.5%
PTO status ON

thanks in advance..

Post by **regent** » 04 Sep 2014, 10:58

You are idling warm, the STFT =37.5 is way way too far from ball park!
I would look for possible unmetered air ingress downstream of the mass meter (like vacuum leaks)

TheLoneAviator · Post by **TheLoneAviator** » 04 Sep 2014, 11:51

Ok, Thats what I wondered. This may be related to my P0442 post. I may just take it to the independent Volvo guy. save me the headache.

Post by **regent** » 04 Sep 2014, 14:58

You could hunt most vacuum leaks without having to pay someone else - vacuum hoses at the age of your car are on the top of the offender list - just to begin with.

TheLoneAviator · Post by **TheLoneAviator** » 04 Sep 2014, 22:12

I'll start that this w/e. See what I find.

TheLoneAviator · Post by **TheLoneAviator** » 05 Sep 2014, 10:01

I found a vac line to nowhere off the left side of the intake. According to the diagram if I read it right, it should goto the flame arrestor PCV under the air box. but I don't see it. see pics. I also found a few presents under there.(Maybe the arestor PCV was removed?)

: Present left by someone

: Vac line from Left side under intake to nowhere

: Looks like it supposed to go over here?

Post by **regent** » 05 Sep 2014, 11:10

It's so nice that that 'present' did not land on the starter solenoid terminals... lucky you!

I will need to look up your vacuum and PCV lines routing when I get in my VIDA, yours is different from mine; hopefully someone may be able to chime in sooner.

TheLoneAviator · Post by **TheLoneAviator** » 05 Sep 2014, 11:39

Yeah I don't have a good diagram either. The TCV I don't think is right either, I need to verify the routing of all these.
I did replace the Purge valve & the rotted lines to that. I think all my other issues are these vac lines routing.

TheLoneAviator · Post by **TheLoneAviator** » 05 Sep 2014, 16:42

Ok, On this diagram, I need to verify where the following lines go.
#20,
#18

: C70turboLines1.jpg (57.03 KiB) Viewed 1270 times

TheLoneAviator · Post by **TheLoneAviator** » 05 Sep 2014, 17:37

And ALSO, where do I plug in a boost gage for test so I can monitor it?