Phil Hyde Posted August 17, 2021 Share Posted August 17, 2021 OK experts, what is the secret to removing and replacing the TPS on an EA82 SPFI engine? As far as I can tell, either the throttle body must come loose, or the AC compressor has to come out. Link to comment Share on other sites More sharing options...
Phil Hyde Posted August 17, 2021 Author Share Posted August 17, 2021 Link to comment Share on other sites More sharing options...
DaveT Posted August 17, 2021 Share Posted August 17, 2021 I just took a look at my 2. And remembered that the TPS I took apart was on an intake that was off the engine. I would unbolt the A/C compressor, and swing it out of the way if I had to get one off an assembled engine. The hoses are long enough. Link to comment Share on other sites More sharing options...
somick Posted August 17, 2021 Share Posted August 17, 2021 As far as I remember you are correct. Either the throttle body needs to be removed or the AC compressor. But if you unplug the connector you can test in place. There is a testing procedure in the FSM Good luck, Sam Link to comment Share on other sites More sharing options...
Phil Hyde Posted August 17, 2021 Author Share Posted August 17, 2021 34 minutes ago, somick said: As far as I remember you are correct. Either the throttle body needs to be removed or the AC compressor. But if you unplug the connector you can test in place. There is a testing procedure in the FSM Good luck, Sam I did do the test procedure. My sensor is failing the first test, which is continuity between A-B when closed or part throttle. I was not able to adjust the sensor CCW, so I am going with the theory that the sensor is faulty. Link to comment Share on other sites More sharing options...
Phil Hyde Posted August 17, 2021 Author Share Posted August 17, 2021 Related question, is this a suitable replacement TPS? It's quite literally all I can find. Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 17, 2021 Share Posted August 17, 2021 (edited) Why are you replacing it? These usually don't fail till well past 300k miles. You seem to be replacing parts at a tremendous rate here and I suspect you are either troublshooting with Visa and are just loading up the parts cannon, or somehow think that replacing the factory parts with aftermarket sh!t will magically make it run better or be more reliable - which it most definitely won't. So what they he!l are you doing here friend? The idle switch in the sensor may need you to adjust the cable or throttle stop (though don't change it if it's factory set still) to get continuity. That is unlikely to have failed. GD Edited August 17, 2021 by GeneralDisorder Link to comment Share on other sites More sharing options...
Phil Hyde Posted August 17, 2021 Author Share Posted August 17, 2021 (edited) 14 minutes ago, GeneralDisorder said: Why are you replacing it? These usually don't fail till well past 300k miles. You seem to be replacing parts at a tremendous rate here and I suspect you are either troublshooting with Visa and are just loading up the parts cannon, or somehow think that replacing the factory parts with aftermarket sh!t will magically make it run better or be more reliable - which it most definitely won't. So what they he!l are you doing here friend? GD Hello Friend - You may want to read my troubleshooting saga in my other thread (mentioned below). I am checking/replacing it because it is failing the tests which are recommended in the factory service manual. Do you suggest otherwise? I don't know you came to the conclusion you did, but it is most certainly not my desire or intention to replace factory with aftermarket - unless there is no other option. So far as I can tell, there is not another option other than waiting indefinitely. I hope this clears up your questions. Phil Edited August 17, 2021 by Phil Hyde Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 17, 2021 Share Posted August 17, 2021 Like I said - adjust the cable and (if it's been messed with) the throttle stop. If that doesn't do it then just rig up a momentary switch on a bracket for the idle switch and re-route the wires. GD Link to comment Share on other sites More sharing options...
Phil Hyde Posted August 18, 2021 Author Share Posted August 18, 2021 To circle back to my first question - I was able to get the sensor off by removing the A/C compressor (which is kind of a bear of a task). 1 Link to comment Share on other sites More sharing options...
Step-a-toe Posted August 18, 2021 Share Posted August 18, 2021 i wonder if you could remove 3-5 mm off the end of the throttle shaft to allow easy on - off for future tinkering? Link to comment Share on other sites More sharing options...
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