August 17, 20214 yr 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.
August 17, 20214 yr 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.
August 17, 20214 yr 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
August 17, 20214 yr Author 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.
August 17, 20214 yr Author Related question, is this a suitable replacement TPS? It's quite literally all I can find.
August 17, 20214 yr 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, 20214 yr by GeneralDisorder
August 17, 20214 yr Author 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, 20214 yr by Phil Hyde
August 17, 20214 yr 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
August 18, 20214 yr Author 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).
August 18, 20214 yr i wonder if you could remove 3-5 mm off the end of the throttle shaft to allow easy on - off for future tinkering?
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