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Yeah, I know something about this stuff. I used to be BAR certified on it and that's an emissions analyzer in the picture, one of three I own. Put another way none of my cars ever fail ;) As for the TPS it can cause emissions problems depending on how it fails. For example if the ECU thinks...

No, the test can't cause a loss of fuel economy. Off the top of my head I don't see any failure mode of the Evap system that would either. What did you fail on the first test?

You should post up the numbers so we can tell what's really going on but it does sound like an inoperative EGR. I wouldn't buy into the injector cleaning thing just yet but it wouldn't hurt to take Jdub's advice. You can also clean them on the car. Much better than using in-tank stuff. You can...

Look at the picture in the posted link. 1) Throttle comes off idle. Dashpot plunger is released. Since it's spring loaded it pulls the diaphragm upward. That cause a vacuum on the opposite side. Atmospheric pressure freely flows through the little filter and delay valve to equalize that...

No, you're right. It matters what color goes on what side. After all the delay valve is what makes the dashpot work in the first place.

^ Lmao. Doesn't get much better than that...

Dimmest.

Looks like decel fuel cut to me. I assume it does this even with the pedal buried. The IDL contact in the TPS is staying closed. The way to quickly confirm it is to go into diagnostic mode and with the key on and engine off press the gas pedal. You should see a code 51. If you don't then that's...

Lmao. It never ends eh? I saw that about 20 minutes ago but when I saw you were here I decided to leave it for you ;)

That's powerful queer alright. Can't say I've seen that. The Super Monitor talks to the ECU so it was probably involved. Remember, it can put the ECU into diagnostic mode. Could've been the Wendys too. Quit eating that stuff and the hallucinations will stop ;)

What you're calling limp mode is properly known as Fail Safe. When the airflow signal is abnormal the TCCS substitutes two values based on the TPS. One is for starting the engine (IDL contact on) and the other (IDL off) is for driving. That will get you about 3K max. There's a bit more to it...

Early Celicas and Corollas share it: http://tinyurl.com/3twhla Note the different part numbers.

Did I miss something? ;) Btw I've said it a million times before: Build a smoke machine. Anything else is Jurassic...

Say what?

Not surprising since 3000 is the programmed rev limit for a bad air flow input. It also means your TPS is working because if it wasn't the engine wouldn't have done that.

My goodness. Hommer, you're not even worth responding to other than to say this: I don't dislike you and I don't reply to every post you make. I would if I didn't like you but frankly I couldn't care less about you or what you think of me. You're just another faceless name on an Internet forum...

Dosvidanya...

As was pointed out the original wire is installed incorrectly and the second wire was added. In other words the far end of the original isn't supposed to be connected where it is. It normally goes from the screw on the coil pack bracket to the stud on the head next to the CBV pipe clamp, not on...

What Shaeff said. Google "ground loop" for more info. Ignore the references to aviation. While I'm intimately familiar with both I'm happy to say I've yet to suffer the embarrassment of the second. Btw, I'm not sure but I think a BSEE trumps a CBT ;)

The factory wiring grounds the shield only at the ECU. The reason for that is to avoid a ground loop. I'm not saying you'll have problems by grounding both ends but good electrical engineering practice dictates it shouldn't be done, at least not in DC or low frequency circuits.