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Computer Not Talking!

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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jmazenaro
Posts: 1
Joined: 3 March 2010
Year and Model: 1996
Location:

Computer Not Talking!

Post by jmazenaro »

I went to have my 1996 850 Volvo turbo wagon inspected for Massachusetts and the computer will not speak to the state computer for my sticker. Took it to my mechanic and he's having issues finding the problem as well. States it will be a witch hunt, but is willing to take it on.

Wondered if anyone else had this particular issue and if so, what the solution may be? Otherwise, my poor mechanic is going to have a fun time using $$ labor to find the wire or loose connection. If someone could suggest an area, I'd love to hear it and pass it on. God knows this site helped me in the past with another huge issue that caused me to find my mechanic in the first place for a $145 fix vs. $3000 at dealership.

Thank you!

fushionEdge
Posts: 42
Joined: 17 February 2008
Year and Model:
Location:

Post by fushionEdge »

buy/ borrow an ecu?
1998 s70, 120,000 miles AT, NA(non-turbo)

jblackburn
MVS Moderator
Posts: 14043
Joined: 8 June 2008
Year and Model: 1998 S70 T5
Location: Alexandria, VA
Has thanked: 9 times
Been thanked: 19 times

Post by jblackburn »

I took out my console to fix a broken parking brake cable, and couldn't figure out why my car would no longer talk to my scanner. I had knocked one of the wires loose from the OBD connector. So, after removing the thing twice, 2 days later, my shifter light burned out :evil: Anyway, it could be something like that with yours, or it could be dirty or corroded connections or a loose connection from the ECU box itself.
'98 S70 T5
2016 Chevy Cruze Premier


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!

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