Reduced Engine Power - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Vaddy · 11-10-2022, 11:43 PM

So I literally today replaced my stock throttle body with a ported one, pretty big change, from 72mm to 84mm (2015 V6). After the install, RPMs go low to high and repeat. And after driving, it goes into reduced engine power, before this, it was fine. But after scanning the codes, I am no closer than I was before. The code showed up for MAP/MAF, TPS, and Pedal sensor. Obviously there's no way they all failed. The car has almost 80k miles, I am more towards replacing the MAF sensor because of the increased air. Also, MAP sensor was replaced a while ago so it can't be that. What do you guys think? Also also I should mention turning on the A/C makes it idle fine.

Codes that I remember:

P0507, P0068

larry_g · 11-11-2022, 08:25 AM

You're going to need a tune for that big of a change in the throttle body. Put the old one back on and I bet the codes all go away.

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gtstorey · 11-11-2022, 08:32 AM

Yes, needs a tune for that change. It's getting values that it doesn't expect for the change in airflow on the map/maf. And the TPS and pedal sensor info also no longer match.

SSEssence · 11-11-2022, 09:39 AM

Try resetting the battery for 15 minutes and see if the car will relearn

11-10-2022, 11:43 PM	#1
Vaddy Drives: Chevrolet Camaro LS 2015 Join Date: Sep 2022 Location: Miami, Florida Posts: 40	Reduced Engine Power So I literally today replaced my stock throttle body with a ported one, pretty big change, from 72mm to 84mm (2015 V6). After the install, RPMs go low to high and repeat. And after driving, it goes into reduced engine power, before this, it was fine. But after scanning the codes, I am no closer than I was before. The code showed up for MAP/MAF, TPS, and Pedal sensor. Obviously there's no way they all failed. The car has almost 80k miles, I am more towards replacing the MAF sensor because of the increased air. Also, MAP sensor was replaced a while ago so it can't be that. What do you guys think? Also also I should mention turning on the A/C makes it idle fine. Codes that I remember: P0507, P0068

11-11-2022, 08:25 AM	#2
larry_g Drives: 2014 1SS/1LE Join Date: Nov 2015 Location: Louisville, KY Posts: 826	You're going to need a tune for that big of a change in the throttle body. Put the old one back on and I bet the codes all go away. Sent from my Pixel 5 using Tapatalk __________________ 830 WHP 700 WTQ, Whipple 2.9 @ 13lbs Boost, Flex Fuel Tune by Blevins Tuning, LSA SBE, 3.5 GripTec, ATI LS3 Damper, AFR 260cc Mongoose, ARP Studs, Yella Terra Ultralites, Johnson 2110R, BTR PDS Stage 3, Melling 10355, Improved Racing Baffle, ID1050X, DSX Triple Fuel Pump, RotoFab CAI, NW 103mm TB, Stainless Works 1-7/8" LTH to 3" Speed Eng w/ X-pipe to NPP, Powermaster 9509 XS, Detroit Speed Motor Mounts, MGW, Monster LT1-S, ZL1 Calipers, DBA Rotors & Pads, Bilstein B6 Struts & Shocks, BMR 1.25" Drop Springs & Adj Rear Bar, Pegasus Solid Bushings, Z/28 Wheels, other misc parts.

11-11-2022, 09:39 AM	#4
SSEssence Instagram: Sangstah Drives: 2019 Camaro 1LE Join Date: Sep 2016 Location: Buena Park, CA. Posts: 2,801 View My Garage	Try resetting the battery for 15 minutes and see if the car will relearn __________________ 2019 SS 1LE - "CaSSandra" 2014 SS - "AleSSandra - Sold" 94 Z28 - Sold Follow the build https://www.camaro6.com/forums/showthread.php?t=612717

11-11-2022, 08:32 AM	#3
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,147	Yes, needs a tune for that change. It's getting values that it doesn't expect for the change in airflow on the map/maf. And the TPS and pedal sensor info also no longer match.