99 s70 Topic is solved

Amorilis · Post by **Amorilis** » 19 Feb 2023, 22:06

I have a 99 s70 that I had to rebuild the fuel system for. It was running good other than something weird with the climate control. One day it turned it off and it would not run. It will crank and run for about 1 good rev then no fire. I pulled the spark plugs and visibility watched the fire start then stop.I can turn the key completely off and crank it again, 1 full rev then dead. If I crank again without turning key completely off, then no spark at all. I've replaced the cam position sensor, crank position sensor, and antenna ring. What am I missing. I read posts about bad abs or faulty key but I only have 1 key and no way to test the abs module. Please help.

Amorilis · Post by **Amorilis** » 19 Feb 2023, 22:10

No codes either.

Post by **wizechatmgr** » 20 Feb 2023, 04:31

Check out the antenna ring, could be codes stored, likely need VIDA to pull them.

Get another key made once you get that fixed, as otherwise you're looking at an expensive tow to get one made.

Post by **abscate** » 20 Feb 2023, 05:15

1999 2000 North America models

If it cranks , fires, then runs for one second , then quits, the key is no longer sending good data to the ECU

Key lost synchronization
Antenna ring

Unlikely
Immobilizer box
ECU

There is no workaround for an unsynched key. The car has to be presented to VIDA with a live internet connection to the Volvo server

Total tech in San Jose can also help