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by sepress1
03 Aug 2021, 10:08
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: ECM-510F speed signal too high permanently?
Replies: 2
Views: 7049

Re: ECM-510F speed signal too high permanently?

A graphing scanner can read the sensors individually in real time. Find a shop with one to see what the sensors are really doing. You will be able to see the signal of each sensor to see if one is reading incorrecctly
by sepress1
03 Aug 2021, 10:01
Forum: 850, S70, V70, C70, V70-XC 1992-2000
Topic: ECM-510F speed signal too high permanently?
Replies: 2
Views: 7049

Re: ECM-510F speed signal too high permanently?

A graphing scanner can read the sensors individually in real time. find a shop with one to see what the sensors are really doing
by sepress1
02 Jul 2021, 14:00
Forum: S80 1st gen 1999-2006
Topic: 2a2a and 2a0a codes with 2 different new o2 sensors
Replies: 0
Views: 1100

2a2a and 2a0a codes with 2 different new o2 sensors

I have put 2 new Bosch sensors in Bank 1 S2 position with the same codes popping up. the signal on my scanner is very "Spikey" with a long duration in between spikes. most of the signal is a dead flatline at .45v. Am i looking for a broken wire at this point? Volvo does't have some backwards way of ...