Rough idle/blue smoke

AndrewSS · 07-22-2024, 11:31 AM

I have a 2018 Camaro SS 1Le. It’s has a CAI, headers and x-pipe, flex fuel kit, btr 225 cam, ported lt2 IM, lt5 TB, and Catch can. I did all the DOD delete and AFM. All new gaskets everywhere. It was tuned on the 18th and make 540hp on its first tank of e85.
Now here’s the problem I drove the car home from the tuning shop after having it trailered there. It drove fine, no problems lots of power. The next day, I change the oil 10 quarts 5W-30 And a new WIX Filter. I drove to a pizza shop after then from there was driving to a car show and got a flashing check engine light I pulled over plugged in my scan tool And got P0307 So I pulled the spark plug wire. It looked fine. So I limp it home In limp mode Misfiring like crazy. The next day I started After And got the code P0300 and P0151 and smoke was pouring out the exhaust Only when I revved up. So I did a head gasket check from the coolant reservoir Which came back Negative thankfully! I’ve been changed all the spark plug wires. And when I pulled number seven spark plug, it had A small amount of oil on the tip and the threads. The oil on the dipstick is clean and Doesn’t smell like gas. I have yet to fill it up with E85 And it just has 93 in it now. I put a bottle of Berhman cleaner in it And let it idle and still nothing. I checked the PCV valve From my Catch can And that’s fine as well. Please help thanks!!🙏🏻

18.2SS.1LE · 07-22-2024, 11:40 AM

Check to make sure the flex sensor is reading the correct ethanol %. P0151 says you have an O2 sensor reading too low as well.

AndrewSS · 07-22-2024, 12:58 PM

Quote:

Originally Posted by 18.2SS.1LE

Check to make sure the flex sensor is reading the correct ethanol %. P0151 says you have an O2 sensor reading too low as well.

I don’t have a way to check that at my house and the tuner lives two hours away. I have already reached out to him waiting for his response. It’s funny because the car was running great and now not even 24 hours. It’s not. 🫤

speedyink1 · 07-22-2024, 09:02 PM

I feel silly saying this but.. did you check the dipstick after the oil change? I know you said you put 10 quarts in but I don't see checking the dipstick mentioned.

2SS Capt · 07-22-2024, 11:48 PM

Is your catch can empty?

WhiteMale · 07-23-2024, 07:28 AM

Headers burned an ignition wire or O2 sensor...?

07-22-2024, 11:31 AM	#1
AndrewSS Drives: 2018 Camaro SS 1LE Join Date: Oct 2023 Location: Wilmington NC Posts: 12	Rough idle/blue smoke I have a 2018 Camaro SS 1Le. It’s has a CAI, headers and x-pipe, flex fuel kit, btr 225 cam, ported lt2 IM, lt5 TB, and Catch can. I did all the DOD delete and AFM. All new gaskets everywhere. It was tuned on the 18th and make 540hp on its first tank of e85. Now here’s the problem I drove the car home from the tuning shop after having it trailered there. It drove fine, no problems lots of power. The next day, I change the oil 10 quarts 5W-30 And a new WIX Filter. I drove to a pizza shop after then from there was driving to a car show and got a flashing check engine light I pulled over plugged in my scan tool And got P0307 So I pulled the spark plug wire. It looked fine. So I limp it home In limp mode Misfiring like crazy. The next day I started After And got the code P0300 and P0151 and smoke was pouring out the exhaust Only when I revved up. So I did a head gasket check from the coolant reservoir Which came back Negative thankfully! I’ve been changed all the spark plug wires. And when I pulled number seven spark plug, it had A small amount of oil on the tip and the threads. The oil on the dipstick is clean and Doesn’t smell like gas. I have yet to fill it up with E85 And it just has 93 in it now. I put a bottle of Berhman cleaner in it And let it idle and still nothing. I checked the PCV valve From my Catch can And that’s fine as well. Please help thanks!!🙏🏻

07-22-2024, 11:40 AM	#2
18.2SS.1LE Drives: Chevrolet Camaro Join Date: Apr 2022 Location: Maryland Posts: 215	Check to make sure the flex sensor is reading the correct ethanol %. P0151 says you have an O2 sensor reading too low as well. __________________ Procharger P1X, CSP Big Boy Cam, CSP Headers, LT5 Throttle Body, MSD Intake, LT4 HPFP, LT4 Injectors, JMS BAP, 93 + Boostane - 750+WHP

07-22-2024, 11:48 PM	#5
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,692	Is your catch can empty? __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Fender Badge, Footwell Lighting *After delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Pedals, SS Wheel Caps, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF-Full Front & Rockers, 35% Tint, CeramicPro coated, RST Stainless Brake Lines, Castrol SRF, MSD Plug Wires, Mamo V3 Ported TB *Left: My "fun" ride (455 HP). Right: My "work" ride (52,000 HP): a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph. BOTH AWESOME to operate...*

07-22-2024, 09:02 PM	#4
speedyink1 Drives: 2023 Camaro 1SS 1LE 6MT Join Date: Nov 2023 Location: Vancouver Island Posts: 552	I feel silly saying this but.. did you check the dipstick after the oil change? I know you said you put 10 quarts in but I don't see checking the dipstick mentioned.

07-23-2024, 07:28 AM	#6
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 2,243	Headers burned an ignition wire or O2 sensor...?

User Name		Remember Me?
Password