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NO throttle response NOT a BOOST leak..stuck on the side of the road.

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yeti-gvr4

10+ Year Contributor
422
2
Dec 23, 2010
san diego, California
So the intake pipe from the turbo popped off and would not idle or even let you put any throttle input on it. So I popped the hood and put the intake pipe on.

Now its doing the Exact same thing and there's no boost leaks.

Everytime you go to hit the throttle the car dies down and then will rev up maybe a couple hundred rpms .

I'm just wondering what would cause this other than a boost leak?

MPI?
TPS?
Injectors, or fuel pump?


I unplugged the maf sensor and it drove me down the street and around the block then started with the same thing again.

How do I manually check the maf and wires?
 
you don't wanna disconnect your maf. make sure its all they way on there

This. Your car won't run right if it doesn't know what's going in
Also make sure you connect all the hoses connected to the intake, one could have popped off and un-metered air is going in.
 
Your symptoms sound like a tps issue.

edit - wrote this from my phone. After re-reading your very hard to understand description of your symptoms the fact that you drove the car at all tells me your tps is probably ok, assuming your car behaves like mine does in regards to the tps. If my tps isn't functioning the car immediately dies upon opening the throttle. Wouldn't hurt to double-check the tps's connection though.

You can check your MAS if you have something to read the MAS signal. I don't think it's accessible from just an obd-ii interface but I can see it via dsmlink, and my s-afc will show it as well. Otherwise I'm not sure how to verify without something like an oscilloscope since the airflow signal is a waveform with measured frequency as opposed to something like a simple voltage measurement.

If you can kind of drive it, it does sound like there's an intake tract disconnect post-MAS. Check all the connections visually, and shake them if you can reach them and they look ok.
 
I just got ecmlink hooked up and I'm throwing code 0014 and 0012
12 is tps
14 is volume air flow circuit malfunction.

And it is true exactly what you said.

My tps was showing .83 volts and the throttle position sensor showed 0% at 100% throttle

So I started the car and sure enough the touch on the gas pedal did nothing on dsm link and also made the car stall out.

So I turned it off and on a few times and BAM my tps is back on dsmlink and I have perfect throttle response, I CAN'T rev past 3k rpms when my tps was working 100%.

So I'm geussing my maf sensor is done for.
But I don't know that for sure cause I'm still reading 457.7 HZ at 3254 RPMs and is reading intake temps.

I think I'm gonna swap a new maf sensor in and see how it goes. Along with another tps.
 
Last edited by a moderator:
Sorry I'm trying to follow up on all of my threads..

I ordered a new maf and I got a new tps so I'll have the answer within a few days. Al most 5 days probably 2 days though
 
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