• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

P2135 code 2004 .....SOLVED

spazzz

New member
Got the dreaded throttle position sensor code.
The kinda needle in the haystack problem.

All good if I don't go past half throttle. This is all happened when I had to hit it to merge into the correct lane.
Instant pow when gassed and engine reduce power plus stabilitrak DIC.
Checked when I got to work for wiring signs but didn't really see any(all done rather quickly)

OK, read code, P2135 and nothing else, reset and on my merry way.
Tomorrow I will clean throttle body and MAF and search for wire problems.

Wish me luck.
I am a fan of free fixes and not rabbit holes. Idon't want to buy a pedal and throttle body just to have the same thing happen when I play racekar.

Let me know if you have encountered this POS GM experience.

And hi yall, havent been around for awhile
 
Last edited:


Re: P2135 code 2004

The cleanings didn't do it and I checked obvious wiring issues, none apparent.
Although I did find my TB gasket was seeping antifreeze so replaced that.

So screw it in the name of throwing parts.
I ordered a new Throttle body and pedal from Rockauto. At least the car is usable up to 70.
Keeping fingers crossed
 
The POS rips in its own little way again.

I replaced both parts, TB and accelerator pedal. Whichever one did it, no cares. I didn't want to dick around.

Now I am going to dissect the throttle body.
 
Now I am going to dissect the throttle body.
When you get the black piece off the throttle, it looks sealed on the inside. There's like a lip or edge around the sealed up part. I chipped that away with a tiny screwdriver then you can look in there. Think I just glued it back shut, lol.
 
When you get the black piece off the throttle, it looks sealed on the inside. There's like a lip or edge around the sealed up part. I chipped that away with a tiny screwdriver then you can look in there. Think I just glued it back shut, lol.

Did you replace your throttle body?
 


Actually, no. I bought another throttle cus the car was hesitating a little under moderate load. WOT was okay. Couldn't figure it out.

Ended up putting the gasket back in even tho my coolant ports are blocked. "I'll see a leak if my dimes come out right away!" I thought I was so cool ..until that gasket made the car run again.

I'd taken the OEM one apart thinking it was bad. Cleaned it with a pink eraser/qtips/alcohol in there, and sealed it up.

That spare one's still on my shelf.
 
Back
Top