After having failed several emissions testing with my 98 S90, I've become pretty good at successfully completing the drive cycle. The most common error made in completing it is failure to do a Flywheel reset. It's easy to do. Find a strip of road that's about a mile long and not busy. In Tempe AZ, I...

Does anyone know where the Audio Amplifier is located on the 1998 S90? And how best to access it? I bought a used S90 and it appears that they had an upgraded audio system that they removed when they sold it and did not reinstall the original system completely/correctly. I am only getting sound out ...

Just a quick note to add that I did in fact pass the smog test on the Tuesday after I ran the drive cycle.
If you're in the Phoenix area and want more info feel free to contact me.

I went to get my 98 S90 smogged. Failed 1st time due to P0455 vacuum leak. Fixed it and reset the OBDII. Went back 2 more times after doing a modified drive cycle, both times they said the OBDII was not ready. Couldn't read anything. Contacted Volvo USA customer service and they sent me the 8 page i...

I've been running regular in mine with out any problems so far. I only pd $2000 for it so I'm running regular til it dies.

I wonder why they made it so difficult to check the trans fluid?! I nearly tore my arm off getting to the little dipstick... Anyway, the dipstick is clean and the fluid is bright red and appears to be full. (I checked it with the car in Park...engine NOT running.) The fella I go it from recently sa...

I just bought another '98 S90. Seems to be in very good shape, runs well...however when I took it to emissions I failed and one reason was that the "check engine" light wasn't coming on even though there was a fail code in the computer (P0455). A friend suggested that they took the light o...

In Arizona, the Drive Cycle for the my S90 could not be completed. I tried for more than 2 months with over 2000 miles logged. I thought this would cost me hundreds to get fixed, but took a chance & ran it through the emissions station in Mesa AZ. Failed ! I talked to the supervisor and after so...