Reduce Engine Power mode
Thread Starter
Pro
Joined: May 2015
Posts: 552
Likes: 37
From: Westlake, OH & Melbourne, FL
Reduced Engine Power mode
This afternoon I lost power and the display said, "Reduced Engine Power," or something similar. The little check engine logo also came on. When I pulled in at home it began to misfire badly. I shut down, disconnected the battery, checked the plug wire connections and reconnected the battery. That cured it temporally but it all came back, with the exception of the misfiring. This is a 2007 LS2 base coupe, with approximately 35,000 miles on it, no mods other than a Billy Boat axle back exhaust.
I took the car in for service, they will not be able to get to it until tomorrow, but the preliminary codes that showed up were:
B1325, Control Module Power Circuit, 03-voltage below threshold
P2138, Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation 00-no additional information
What am I likely to be in for? This sounds as if it could be loose connections or bad sensors. The Search function here is giving me so much to look at, that I don't know what to look at.
I took the car in for service, they will not be able to get to it until tomorrow, but the preliminary codes that showed up were:
B1325, Control Module Power Circuit, 03-voltage below threshold
P2138, Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation 00-no additional information
What am I likely to be in for? This sounds as if it could be loose connections or bad sensors. The Search function here is giving me so much to look at, that I don't know what to look at.
Last edited by BillytheKidder; Feb 13, 2019 at 05:17 AM.
Thread Starter
Pro
Joined: May 2015
Posts: 552
Likes: 37
From: Westlake, OH & Melbourne, FL
I can’t complain too much, other than replacing an AC heat exchanger that got holed by gravel and cleaning the clutch switch connector, the only money we’ve put into this car was for tires and fluid changes.
Last edited by BillytheKidder; Feb 13, 2019 at 05:16 PM.
Safety Car
Joined: Dec 2006
Posts: 4,583
Likes: 1,664
From: Pearland / Houston Tx
I assume you mean accelerator pedal position sensor. I think the Throttle Position Sensor is built into the throttle body and you had to replace the entire TB. ??
P2138 reference the APP (accelerator pedal position) sensor. It is part of the entire accelerator pedal. Pedal (25835421) is an $80 part and probably 30 minutes to replace.
If you are a risk taker you could just pay the diagnostic fee and change yourself.
P2138 reference the APP (accelerator pedal position) sensor. It is part of the entire accelerator pedal. Pedal (25835421) is an $80 part and probably 30 minutes to replace.
If you are a risk taker you could just pay the diagnostic fee and change yourself.
Thread Starter
Pro
Joined: May 2015
Posts: 552
Likes: 37
From: Westlake, OH & Melbourne, FL
Yes, the whole throttle pedal assembly is being replaced.
If I were at home I probably would do it myself, but I’m not at home and would just as soon get it done by someone else. $160 for diagnosis, $160 an hour for labor, $130 for the part, then shop fees, taxes etc.
I spoke to my dealer at home, who I trust. They would be less by about $100 or so. Chalk it up to higher labor and diagnostic costs here in Fort Lauderdale.
I spoke to my dealer at home, who I trust. They would be less by about $100 or so. Chalk it up to higher labor and diagnostic costs here in Fort Lauderdale.
Last edited by BillytheKidder; Feb 13, 2019 at 08:18 PM.
Melting Slicks
Joined: Sep 2017
Posts: 2,396
Likes: 525
From: Lower New York
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Thread Starter
Pro
Joined: May 2015
Posts: 552
Likes: 37
From: Westlake, OH & Melbourne, FL
Safety Car
Joined: Jul 2013
Posts: 4,408
Likes: 3,485
From: Granada Hills CA
Just a little reading for you.
https://www.corvetteforum.com/forums...rustrated.html
https://www.corvetteforum.com/forums...rustrated.html
Thread Starter
Pro
Joined: May 2015
Posts: 552
Likes: 37
From: Westlake, OH & Melbourne, FL
Melting Slicks
Joined: Sep 2017
Posts: 2,396
Likes: 525
From: Lower New York
Could care less whether the part was available or not. My car is not broke. Just repeating what I read, nothing more.
Thread Starter
Pro
Joined: May 2015
Posts: 552
Likes: 37
From: Westlake, OH & Melbourne, FL