1996 850 n/a 137k. runs excellent. replaced sas system reset code po410. code came back excactly at 400 mi. fixed vacuum leak? with new elbows but code came back again at 400 mi. my grizzled pops(volvo enthusist) says seal the gas cap with some vasoline. did this then cleared that darn po410 code. I now have 800+ mi. with no check engine light but wont pass nys inspection due to " 3 monitors still to be checked." wtf? how long do i have to drive ? Im going to get pulled over and ticketed for sure with this expired temp inspection sticker. do i throw more money at it? PCV system is original. FCP groton has been great for parts.

I have a 96 855t and had the same problem here in PA. The mechanics checked a book the second time it happened and found that the 1996 Volvo 850 will always say "monitor not ready" on certain parts of the test which makes the 96 exempt from those particular tests; at least here in PA. Now when I go somewhere for emissions I tell them to look it up and never have a problem.
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90' 244 (205k); 96' 855T (165k)

1996 850s have a hard time getting through the drive cycle. Whatever you do, never disconnect the battery before you need to get it tested.

Read all of the following threads, a bit long but very informative:

http://www.brickboard.com/AWD/volvo/1406857/C70/emissions_inspection_setting_drive_cycle.html

Klaus
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Praying for Cynthia Amendt, heaven bound

Hello,


What does that mean? "3 monitors need to be checked"?

You should fit a brand new gas cap. Check eeuroparts.com


Goatman

these vehicles go thru a multiple of "checks" while they are driven. The ECU still is not ready (hasnt completed all variables) even with 800+ miles. never heard of that. Volvos do take a while. I will p/u a new gas cap. Still doesnt make sense po410 is sas system. I am speculating a worn/ cracked pcv hose somewhere possible robbing vacuum? 900 miles and still no codes but not out of the woods.