ETM issues or something else?

xyna · Post by **xyna** » 28 Jul 2023, 09:54

Last week, I noticed that my car was not running very well, pressed on the gas and it took a long time for the car to react to it. Then I noticed the ETM light, and hurried to the workshop to read the codes. I had one code for the knock sensor, and two codes for the TPS. Would a bad knock sensor trigger those codes for the TPS, or do I have to take apart my ETM and go for the contactless sensor repair? It's also pretty weird that since the ETM light went on and I cleared the codes, I have driven almost 900 kilometers. During that time the ETM light did not appear, even though I had those symptoms the car would take 1-2 business days to react to me flooring it.

dikidera · Post by **dikidera** » 01 Aug 2023, 14:53

ETM for sure.

Post by **abscate** » 13 Aug 2023, 04:09

You will typically get 5000-10000 miles of errors (and the dashboard ETS light off/on) on a failing Throttle body before it gives up into full limp mode. Often spurious codes will be thrown for knock sensors, accelerator pedal modules, and others.

The fix is a $150-200 unit off eBay, the late model contactless ETM design from Volvo