1998 S70 EVAP and Other Emission Tests

[aong]

I finally passed the emission test. All monitors are ready now.

I followed the procedure above and completed all tests in one day. The key is to keep a steady throttle and follow the procedure pasted above. Repeat the procedure until all the monitors turn ready.

Sorry for rambling before, but I'm just really p....d.

I have to come up with a plan to solve this and have a few questions:

Next thing is to try and find a stretch of highway to speed up the process and achive the same as you. How long did you wait after each run? Did you let it cool down again?

Hopefully it will work, but if the EVAP code comes back I have to dig into the system again. The only thing that has not been touched is the charcoal canister. My mechanic says it's rare, but they can go bad. What experience do you guys have?

I gassed up the other day at a gas station near my house where they pump for you (Normally I don't do that, but I was in a pinch). Since I don't trust that they closed the gap properly, I checked it at home. Sure enough, it was on somewhat loose, I could turn it quite a bit until it clicked. That drive home was only half a mile, but would that be enough to trigger a CEL?

I would appreciate your help,

Dirk

A local Volvo tech told me that the gas cap might also be an issue. So, I replaced the gas cap when I replaced all the hoses and valves. Your mechanic is right. It is very rare for charcoal canister to go bad.

I started the procedure with a cold engine. I drove and idle more than the time specified in the procedure. I wanted to make sure that the ECU collected the needed data to complete the tests. Do not turn off your engine until you finish at least one cycle and your engine is hot. For the evaporation system to be tested for readiness, your gas tank should be hot and produce enough gas.

After you completed at least one cycle, turn off your engine. Go for walk or have lunch to let your engine cool turn. Repeat the procedure as needed. For me, it took an entire day of driving to have everything “ready”. It was a pain but it worked at the end.

[850 LPT]

I passed the emissions test today ... 6 months late with 5 monitors NOT ready. I did not know they were not ready because I stopped scanning a few weeks ago. I just made myself crazy checking all the time.

I figured I'll just go and try and whatever happens happens, but at least I would have something in my hand in case I get pulled over. So when the guy gave me the paper and said that it passed I didn't even look at it because of my exitement.
I may go back and ask how this can be. There has to be some kind of exemption for a case like this. I drove about 3k since my last EVAP repair, and still 5 monitos show not ready.