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V70 random misfire - continuing saga V70-XC70 2000

posted by  Robert S. on  Thu Sep 30 11:59 CST 2021
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last visit: Sun Sep 21 05:48 CST 2014
[RELATED]

2000 V70 SE AW-5 Denso 281k miles

Continuing this car's saga of nailing down root cause of #3 cylinder random misfire. You're probably familiar with my previous posts on this subject. To summarize:
- Misfire always occurs in #3. Sometimes it will be hundreds of miles/weeks until it recurs; sometimes the next day. No set pattern; very random and not dependent on engine load or speed. CEL just suddenly illuminates out of nowhere, then rough running.
- #3 Coil has been been both replaced and swapped numerous times.
- Coil receptacle housing has been replaced and repinned, with new wires spliced in upstream from the coil.

We're at the point in the troubleshooting sequence to pull the ECM, check/clean connections, and/or send ECM off for rebuild.

One glitch however: When ordering the ECM removal tool, the rep at ipd (usually a credible source) tells me that this tool won't work on Denso-equipped cars. Any one know with certainty if this is correct? And if so, is there an alternate tool used for removing the Denso ECM?

Thanks,
Robert





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