My car throws 3 CEL codes for throttle malfunctioning(P0121, P1637, P1086). Over 3000RPM does not make power.
Open flash tablet shows 30% throttle opening when I push gas pedal all the way. Car does not build boost eventhou there is no boost leak.
Is my throttle body motor/TPS bad? Is something corrupted with ECU?
Any suggestion would be appreciated/

Thank you.

 

What changed when it happened? Did it do it when you flashed the car? If so it sounds like a calibration issue. I would contact your tuner and have them check it out.

If you need anything please feel free to let me know.

Mitch.mckee@cobbtuning.Com

-mitch

 

Thanks Mitch. Car was running ok at least 150 miles after flashing. Just one day in the morning started doing it. It did no happen during driving, but after I started it next day. Why would you think its tuning issue?
I see sudden jumps in throttle, sort of like noise spikes.
Could it be throttle motor? Should I reflash?

 

I just meant if you flashed it and it started acting up. I would suggest flashing back to stock and see if it still does it.

Let me know how it goes!

Mitch

 

I will do that today.

Thanks

 

No problem good luck let us know how it goes!

Mitch

 

Mitch, I tried re flashing the original map and problem is still there. However more I drive seem like its getting little better. Maybe im imagining it.. not sure. Im trying to download the log but Im having issues with the SW.

 

Here is the CSV file I just drove 1-2-3, floored it but throttle reading would not go above 35%.... In 1 or 2 occasions, it would spike 100%. Weird, could traction control have anything to do with this?

 

Hello,

Try turning on the cruise control for 5 sec and turn it off.

This can help in some occasions.

 

I did , no change.

 

Do you know what is the root cause of the problem? I will try that tonight.

Thanks

 

Sorry to see your having problems. I am in now way a qualified tuner I've just been looking at my own logs a lot. I found it interesting you fuel trim bank one was 1.46 and your bank two was 0. I'm not sure what that means I know it's been put out that if it's over 1.25 across both banks your FPR needs attention. Not saying this is your problem.

 

I also have e85 map that I used 200miles ago. Not sure if that has anything to do with it. I did notice that as well.

 

It means the monitors are broken in the software. So they are incorrect.

Maybe try and take it to a dealer and see if they can do a throttle adaption.

-Mitch

 

What is throttle adaption? Is that something only dealer can do?