Brad2015 Posted January 12, 2016 Report Share Posted January 12, 2016 I have a 2000 s80 2.9 that idles rough and goes into limp mode sometimes. I'm throwing codes for maf,02 sensors, coolant temp sensor. I'm getting no reading at these sensors after replacing all of them and my temp gauge doesn't work. I also had the etm rebuild and flashed by the dealer without improvement. Do all these sensors ride on the same harness? Any other possibilities? Link to comment Share on other sites More sharing options...
Fran9690 Posted January 12, 2016 Report Share Posted January 12, 2016 Fuse? Bad ground? Link to comment Share on other sites More sharing options...
Brad2015 Posted January 12, 2016 Author Report Share Posted January 12, 2016 I don't think there is a main fuse, grounds look ok Link to comment Share on other sites More sharing options...
Commander Riker Posted January 13, 2016 Report Share Posted January 13, 2016 I'd be worried that it's more ECU related if they all just failed at once. Link to comment Share on other sites More sharing options...
Fran9690 Posted January 14, 2016 Report Share Posted January 14, 2016 Try pulling the ECM and inspect the pins. See if there is any GFS on the terminals. If there is, what I do is take some emery cloth and spray WD-40 on the terminals. Then gently go over the terminals with the emery cloth to clean them up. Then before reinstalling the ECM I spray the harness side connector and slide rails with some more WD and reinstall. Link to comment Share on other sites More sharing options...
Brad2015 Posted January 15, 2016 Author Report Share Posted January 15, 2016 Yes I also find it odd that they all are not getting a reading. I was leaning more towards the harness but not excluding the Ecu. Is there an easy way to pull the Ecu out without the special tool. Link to comment Share on other sites More sharing options...
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