tried the search and cant find much about it ?
So it appears I have a bad ETM on a family memebers 2000 s70na. yes that lovely little italian piece of.......
If you have followed along I have tried every tip suggested to me to get rid of surging.
So researching I found out that the ETM has a junky design for the TPS. A person can replace it, for 180 or so, or buy a new etm for 700+ and still have the funky design tps
the replacement is a Sacer unit ( aftermarket)
of course volvo only sells the whole ETM and not the replacement TPS
any diy on this install, or advice, experience etc