Thanks again all.

Hey Larry - no problem!

Squeaky

Thanks all. I haven't been ignoring the problem until the last little while - I've had the code read and reset several dozen times and invested a chunk of money into having it diagnosed by the local dealer and two other shops. Could someone clarify something for me - if the CEL light is on and the c...

My 1994 850 Turbo Wagon has been displaying its check light off and on ever since I bought the car two years ago (300,000 plus kilometres). Code readings vary, but they always include the knock sensor, and much less often the front co2 sensor. The knock sensor has been replaced twice at the dealer a...

Hi MIJ,

I'm using 91 octane - tried 94 for a while, but it made no difference.

Is there a minimum level for that engine? Is it a case of the higher the better?

Thanks,
Squeaky

Thanks Volgrrr in Victoria, Australia I appreciated the input. Actually, the codes have been read at least a dozen times in the year and a half that I've owned the car. The knock sensor has been replaced twice (the last time included the new updated wiring kit), but the codes continue to indicate a ...

Hi folks, Back with more questions about the check engine light on my '94 850 turbo wagon. I'm still trying to figure out why it keeps coming on - still no sign of the promised help from my dealer. My latest question: several times now the engine check light has shut itself off - what does this mean...

Three days later and the check engine light is back on - no surprise, but it's driving me to distraction. As I mentioned, the dealer is supposidly contacting Volvo for some advice. From all the check engine light threads regarding the 850 Turbo model on this site, I guess I'm not the only one, but I...

The code is always the same - knock sensor. I've changed the knock sensor twice and installed an upgraded wiring harness for it. I dropped by the local dealer today to have the codes read (what else - knock sensor) and the light shut off. They are going to contact Volvo to see if anyone there has an...

On my '94 850 Turbo wagon I can often hear a "clicking" noise coming from what I believe is the power door lock mechanism - it sounds as though it's trying to lock the doors, but can't. The only way to stop it is to lock it manually with the key or with the remote. When I go at speed aroun...

Ever since I purchased my "experienced - 300,000 km +" 1994 850 Turbo wagon a year and a half ago, I have been plagued with engine check light problems. I have replaced oxygen sensors and knock sensors and yet it still continues to come on. After "X" number of starts, it usually ...