Throttle position sensor code, again
Thread Starter
Le Mans Master
Joined: Feb 2011
Posts: 6,707
Likes: 173
From: Chatham NY
St. Jude Donor '13, '15-'16,'18 thru '25
Throttle position sensor code, again
Back at the end of April I was driving home from a road trip about 1000 miles total and on a long downhill section of Rt 84 in Pa my car went into the "reduced engine power" mode. I shut it off for a few minutes and upon restart it was back to normal except the check engine light was, drive it up the road a few miles and a guy at an auto parts chain store scanned it with code p2135 showing. Got it home ok, did some research and found it needed a new throttle body. Purchased one from my local Chevy dealer, had it installed and the place that installed it also did the relearn. Car has been fine since but on occasion has a little stumble when I hit the gas, not sure if that is related. Anyway, on my way home from Carlisle yesterday and in still in Pa the same thing happens again, shut it off for a few minutes and then to a local auto parts store where we get the same code p2135. Btw the car is an '09 auto with 60k, it has 4000 on it since the new TB. So, did I get a new TB that went bad or could it be the pedal sensor, which if I did my search right shows a code of 2127 or something similar.
And while I was at Carlisle I had a set of Kooks axle back mufflers installed, so it wasn't all bad
And while I was at Carlisle I had a set of Kooks axle back mufflers installed, so it wasn't all bad
Race Director
Joined: Dec 2002
Posts: 10,461
Likes: 1,149
From: Wayne Township WI
FWIW since dealer replaced TB in April of this year, it'd go back to dealer to figure out.
Paid very good $ to get rid of this thing, only to have it return < a year?
IIRC GM warranties their parts/labor for 1 year, you're well within that warranty period.
If it is a defective TB, which makes me wonder, let dealer replace w/ new unit --on their dime.
G/L, post outcome please.
Paid very good $ to get rid of this thing, only to have it return < a year?
IIRC GM warranties their parts/labor for 1 year, you're well within that warranty period.
If it is a defective TB, which makes me wonder, let dealer replace w/ new unit --on their dime.
G/L, post outcome please.
Team Owner
Joined: Aug 2006
Posts: 25,105
Likes: 3,156
C6 of Year Finalist (appearance mods) 2019
I had put on an aftermarket MAF and it caused a stumble upon accelerating. purchased a OEM MAF from Amazon that cleared the problem.
I have a factory reconditioned OEM TB if you need a new one (did not fix my high idle problem). Yours cheap if you need it.
I have a factory reconditioned OEM TB if you need a new one (did not fix my high idle problem). Yours cheap if you need it.
